At the A1 level, the word data is usually introduced in the context of mobile phones and computers. Beginners learn that data is the invisible thing that allows their phone to connect to the internet when they are not using Wi-Fi. They understand phrases like 'I have no data' or 'mobile data'. It is taught as a simple, uncountable noun similar to water or money. You cannot count it easily without using a measurement word like gigabytes. Beginners also learn that data means information, like numbers or facts on a computer. If a teacher asks for your personal data, they mean your name, age, and address. The focus at this level is on recognizing the word in everyday technology use and basic forms. It is a very common word because everyone uses smartphones today. Students learn to say things like 'My phone needs more data' or 'The data is on the computer'. They do not need to worry about the complex grammar rules or the history of the word yet. The main goal is basic comprehension and practical use in daily life, especially regarding technology and simple information sharing.
At the A2 level, learners expand their understanding of data beyond just mobile phone internet. They begin to see data as a synonym for information, facts, or numbers used in simple tasks. They might encounter it in basic charts, graphs, or forms. For example, they understand sentences like 'We need to enter the data into the computer' or 'The data shows that it rains a lot in April'. At this stage, learners are taught that data is generally treated as a singular, uncountable noun in everyday English, meaning they should use 'is' instead of 'are' (e.g., 'The data is ready'). They learn common verbs that go with it, such as 'save data', 'delete data', or 'collect data'. They also start to understand compound words like 'database', which is a place where data is stored. The context broadens to include simple workplace scenarios, school projects, and basic news reports. They learn that protecting personal data, like passwords and bank details, is important for security. Overall, A2 learners use the word confidently in familiar, everyday contexts related to technology, simple statistics, and personal information.
At the B1 level, the concept of data becomes more abstract and professional. Learners understand that data is essential for making decisions in business, science, and government. They can discuss topics like 'data collection', 'data analysis', and 'data privacy' in moderate detail. They understand the difference between raw data (just numbers) and information (what the numbers mean). At this intermediate stage, they can read a news article about a 'data breach' and understand that hackers stole private information. They can use data in sentences to support an argument, such as 'The data proves that this product is popular'. They are also introduced to the grammatical debate: while they know 'data is' is common and acceptable, they learn that in formal or scientific contexts, some people say 'data are'. They learn more complex collocations, such as 'reliable data', 'historical data', and 'to interpret data'. They can participate in meetings or discussions where data is presented in charts and graphs, and they can explain what the data represents using comparative language.
At the B2 level, learners have a strong, nuanced command of the word data. They can confidently use it in professional, academic, and technical discussions. They understand complex concepts like 'big data', 'data mining', and 'data encryption'. They can articulate the ethical implications of data collection by large tech companies and discuss data protection laws like GDPR. In writing, they know how to seamlessly integrate data to support complex arguments in essays or reports. They are fully aware of the singular versus plural debate ('data is' vs. 'data are') and can consciously choose the appropriate form based on the formality of the context and the style guide they are following. They use a wide range of sophisticated collocations, such as 'empirical data', 'qualitative data', 'quantitative data', 'to gather data', and 'to manipulate data'. They can critically evaluate the source and reliability of data presented to them. At this level, data is not just a vocabulary word; it is a conceptual tool they use to navigate and analyze the modern information-driven world.
At the C1 level, the usage of data is highly sophisticated and almost indistinguishable from a native speaker. Learners can engage in deep, abstract discussions about the philosophy of data, data science methodologies, and the societal impact of algorithmic data processing. They effortlessly use advanced terminology like 'data sets', 'data points', 'data visualization', and 'data integrity'. They can write complex academic papers or professional reports where data is the central focus, using precise verbs like 'extrapolate', 'correlate', and 'synthesize' in relation to data. They understand the subtle difference between 'data', 'metrics', 'analytics', and 'statistics', and choose the exact right word for the context. They are comfortable reading dense scientific literature where 'data' is strictly treated as a plural noun (e.g., 'These data suggest a paradigm shift'). They can debate the nuances of data bias, the commodification of personal data, and the future of artificial intelligence reliant on massive data inputs. Their command of the word reflects a deep understanding of its role in shaping contemporary society and knowledge.
At the C2 level, mastery of the word data is absolute. The learner understands its etymological roots (from the Latin 'datum') and how its usage has evolved over centuries from a strict plural to a modern mass noun. They can play with the word stylistically, using it in rhetorical devices or complex metaphors. They can effortlessly navigate the most specialized jargon in fields like machine learning, bioinformatics, or econometrics, where data is the foundational element. They can critique the methodology of how data was gathered, challenging the validity of the 'raw data' itself. They can write policy documents, legal briefs, or advanced scientific treatises concerning data governance, data sovereignty, and cross-border data flows. They understand regional variations in pronunciation and usage without any confusion. At this highest level of proficiency, the word data is a flexible, powerful instrument in their vocabulary, used with total precision to articulate the most complex, nuanced, and abstract ideas in any professional, academic, or philosophical domain.

data 30秒で

  • Facts and statistics collected together for reference or analysis.
  • Digital information stored, processed, or transmitted by computers.
  • The internet connection allowance provided by a mobile phone network.
  • Historically plural, but now widely used as a singular mass noun.

The word data is one of the most fundamental terms in the modern English language, serving as the cornerstone of our digital, scientific, and professional lives. At its most basic level, data refers to a collection of facts, numbers, measurements, or observations that have been gathered together for the purpose of reference, analysis, or calculation. In the contemporary world, however, the meaning of data has expanded significantly. It no longer just means numbers written in a ledger; it encompasses all the digital information stored, processed, and transmitted by computers, smartphones, and networks globally. When people use the word data, they are often talking about the invisible lifeblood of the internet and modern technology. Every time you send a message, stream a video, or browse a website, you are generating and consuming data. This term is ubiquitous in business, where companies rely on data to understand consumer behavior, optimize their operations, and predict future trends. It is equally critical in science and medicine, where researchers analyze vast amounts of data to discover new treatments, understand climate change, or explore the universe. The concept of data is so pervasive that it has given rise to entirely new fields of study and professions, such as data science, data engineering, and data analytics.

Digital Context
In computing, data is information translated into a form that is efficient for movement or processing. Relative to today's computers and transmission media, data is information converted into binary digital form.

Understanding data also requires recognizing its different forms. There is quantitative data, which deals with numbers and things that can be measured objectively, such as height, weight, temperature, or financial revenue. Then there is qualitative data, which is descriptive and conceptual, dealing with characteristics and traits that cannot be easily measured with numbers, such as colors, textures, smells, tastes, or human emotions and opinions. People use the word data when they are trying to provide evidence for an argument or when they are seeking to make an informed decision. Instead of relying on gut feelings or intuition, professionals across all industries prefer to be data-driven. This means they look at the hard facts before deciding on a course of action.

The scientists spent months collecting data on the migration patterns of the birds.

My phone plan only gives me five gigabytes of data each month.

Furthermore, the term big data has emerged to describe datasets that are so voluminous and complex that traditional data processing application software is inadequate to deal with them. Big data challenges include capturing data, data storage, data analysis, search, sharing, transfer, visualization, querying, updating, information privacy, and data source. People use the term big data when discussing the massive scale of information collected by tech giants, governments, and large corporations. The conversation around data has also become deeply intertwined with discussions about privacy and security. When people talk about data breaches or data protection, they are referring to the safeguarding of personal information—such as names, addresses, credit card numbers, and browsing history—from unauthorized access or theft.

Scientific Context
In scientific research, data represents the raw, unanalyzed facts gathered during an experiment or observation, which will later be interpreted to form a conclusion.

We cannot proceed with the project until we have more reliable data.

In everyday conversation, you will frequently hear people discussing their data plans in relation to their mobile phones. In this context, data is treated almost like a utility, similar to electricity or water. You pay for a certain amount of data, and you consume it by browsing the web, using apps, or streaming media. If you run out of data, your internet access may be slowed down or cut off entirely until the next billing cycle. This specific usage highlights how the word has evolved from a purely academic or scientific term into a commonplace word that affects daily life and personal budgets.

Business Context
In a corporate environment, data often refers to customer metrics, sales figures, and market research used to drive strategic business decisions.

The marketing team analyzed the customer data to improve their advertising strategy.

Please back up your data before updating the computer's operating system.

Using the word data correctly in sentences requires an understanding of its grammatical nature, which is famously a subject of debate among linguists and style guides. Historically and strictly speaking, data is a plural noun. It is the plural form of the Latin word datum, which means something given. Therefore, in highly formal, traditional, or strict academic and scientific writing, you will often see data treated as a plural noun. In these contexts, it takes a plural verb. For example, a scientist might write, The data are conclusive, or These data show a significant trend. However, in modern, everyday English, and increasingly in journalism and business, data is treated as a singular mass noun, similar to the word information. In this much more common usage, it takes a singular verb. You will frequently hear and read sentences like, The data is conclusive, or This data shows a significant trend. Both usages are widely accepted today, but it is crucial to know your audience and the style guide you are expected to follow.

Singular Usage
Treating data as a mass noun with a singular verb (e.g., The data is clear). This is the standard for conversational English, business, and most modern publications.

The data is currently being processed by the main server.

All the relevant data has been collected for the quarterly report.

When constructing sentences with data, it is also important to use the correct adjectives and verbs that naturally collocate (go together) with it. Common verbs used with data include collect, gather, analyze, process, interpret, store, retrieve, and protect. For instance, you might say, We need to collect more data before making a decision, or The software is designed to analyze large volumes of data quickly. When describing data, common adjectives include raw, accurate, reliable, sensitive, personal, historical, and statistical. Raw data refers to information that has been collected but not yet processed or analyzed. Sensitive or personal data refers to information that must be protected for privacy reasons. By combining these verbs and adjectives, you can create precise and professional sentences.

Plural Usage
Treating data as a plural count noun with a plural verb (e.g., The data are clear). This is primarily reserved for strict academic, scientific, or formal publishing contexts.

The data are presented in the appendix of the research paper.

Another crucial aspect of using data in sentences is understanding its role in compound nouns. Data frequently acts as an adjective modifying another noun, creating widely recognized terms. Examples include data entry, data processing, data mining, data breach, data base (usually written as one word: database), and data set (often written as dataset). In these cases, data is always singular in form, even if the concept refers to multiple pieces of information. For example, you would say, She works in data entry, not datas entry. You would say, The company suffered a massive data breach, meaning a breach involving their data. Mastering these compound terms is essential for fluency, especially in professional or technological environments.

Compound Nouns
Data is frequently used as a modifier before another noun to describe a specific field, action, or object related to information handling.

He is studying data science at the university.

The new privacy laws are designed to prevent another data breach.

The word data is inescapable in modern life; you will hear it across a vast array of contexts, from the most casual everyday conversations to the most formal professional and scientific environments. One of the most common places you will hear the word data is in relation to mobile technology and telecommunications. When people discuss their smartphones, they frequently talk about their data plans, data limits, data roaming, and running out of data. In this context, data refers specifically to the cellular internet connection provided by a network operator. You might hear a friend say, Can I connect to your Wi-Fi? I do not want to use up all my mobile data. This usage is so prevalent that for many people, especially younger generations, this is the primary association they have with the word.

Telecommunications
In everyday consumer language, data almost exclusively refers to the internet bandwidth allowance provided by a mobile phone carrier.

I received a text message saying I have used 90 percent of my data for this month.

Make sure to turn off data roaming when you travel abroad to avoid extra charges.

Another major arena where the word data dominates is the corporate and business world. In offices around the globe, decisions are increasingly driven by metrics and analytics. You will hear managers, marketers, and executives talking about customer data, sales data, financial data, and performance data. In meetings, someone might present a chart and say, The data indicates that our new product is performing well in the European market. Companies employ data analysts and data scientists whose entire job is to interpret this information to help the business grow. Furthermore, in the realm of technology and software development, data is the core component. Programmers talk about databases, data structures, data migration, and data storage. When you use an app, the app is constantly sending and receiving data from a server.

News and Media
Journalists frequently cite data to back up their reporting, especially in stories related to economics, public health, elections, and climate change.

According to the latest economic data, inflation is beginning to slow down.

You will also hear the word data prominently in the news, particularly concerning privacy, security, and government policy. News anchors frequently report on data breaches, where hackers have stolen personal information from a company. Discussions about social media platforms often revolve around how they collect, use, and sometimes sell user data. In politics, campaigns rely heavily on voter data to target their messaging. During public health crises, such as a pandemic, the public is constantly updated with data regarding infection rates, hospitalizations, and vaccination numbers. In all these contexts, data represents authority, evidence, and the underlying reality of a situation. Whether it is a doctor looking at patient data, a meteorologist analyzing weather data, or a sports commentator discussing a player's statistical data, the word is a fundamental part of how we understand and navigate the modern world.

Healthcare and Science
Medical professionals and researchers rely on data from clinical trials, patient histories, and laboratory tests to make diagnoses and discover treatments.

The clinical trial provided valuable data on the efficacy of the new vaccine.

Astronomers are analyzing the data transmitted by the space telescope.

When learning and using the word data, there are several common pitfalls that both non-native speakers and native speakers frequently encounter. The most prominent mistake involves the grammatical debate over whether data is singular or plural. As mentioned earlier, data originates as the plural of the Latin word datum. Therefore, strict grammarians and certain academic style guides insist that it must be treated as a plural noun, requiring a plural verb (e.g., The data are clear). However, in everyday usage, business, and most modern writing, data is treated as a singular mass noun (e.g., The data is clear). The mistake occurs when a writer or speaker mixes these conventions within the same document or fails to adhere to the specific style guide required by their institution. For instance, writing The data is compelling, and they show a clear trend mixes a singular verb (is) with a plural pronoun (they), which is grammatically inconsistent and confusing.

Pluralization Error
Adding an 's' to the end of data to make it plural. Data is already plural or uncountable; datas is never a correct word in English.

Incorrect: I have collected all the datas for the report.

Correct: I have collected all the data for the report.

Another frequent error is attempting to use data as a singular countable noun with the indefinite article a or an. Because data is treated either as a plural noun or an uncountable mass noun, you cannot say a data to refer to a single piece of information. If you need to refer to one specific item within a dataset, you should use the word datum (though this is very rare and highly formal) or, much more commonly, use a phrase like a piece of data, a data point, or simply a fact or a statistic. Saying I found a very interesting data in the report sounds unnatural to native speakers. Instead, you should say I found a very interesting data point in the report or I found some very interesting data in the report.

Article Error
Using the indefinite article 'a' before data. Since data is not a singular countable noun, 'a data' is grammatically incorrect.

Incorrect: The scientist discovered a new data today.

Pronunciation also presents a minor but notable area of confusion. There are two widely accepted pronunciations of data in English: DAY-tuh and DAH-tuh. Both are correct, and usage varies by region and personal preference. In American English, DAY-tuh is generally more common, while DAH-tuh is frequently heard in British English and other Commonwealth countries, though both are understood everywhere. The mistake is not in choosing one over the other, but in believing that one is definitively wrong, which can lead to unnecessary corrections or self-doubt. Finally, a conceptual mistake is confusing data with information. While often used interchangeably, in technical fields, data refers to raw, unorganized facts, whereas information is data that has been processed, organized, and given context to make it meaningful. Recognizing this distinction is important in fields like computer science and analytics.

Conceptual Error
Failing to distinguish between raw data (unprocessed facts) and information (data that has been analyzed and given meaning).

Correct: We must process the raw data to extract useful information.

Correct: She plotted the data points on a graph to visualize the trend.

While data is a highly versatile and commonly used word, there are many situations where using a synonym or a more specific alternative can make your writing or speech more precise and engaging. The most common synonym for data is information. In everyday conversation, these two words are virtually interchangeable. If you say, I need more data on this topic, it means the exact same thing as saying, I need more information on this topic. However, as noted in technical contexts, data implies raw, unprocessed facts, while information implies data that has been organized and analyzed. Another excellent alternative is statistics. You would use statistics when the data specifically consists of numerical facts that have been collected and analyzed. For example, instead of saying, The data shows that crime is decreasing, you could say, The statistics show that crime is decreasing. This highlights the mathematical and analytical nature of the facts being presented.

Information
The most general synonym. It refers to knowledge obtained from investigation, study, or instruction. It is less technical than data.

The brochure contains important information about the new software.

Government statistics indicate a rise in employment this quarter.

When you are talking about specific pieces of truth or reality, the word facts is a strong alternative. Facts are things that are known or proved to be true. While data can be a collection of facts, using the word facts emphasizes the undeniable truth of the statements. For instance, The facts of the case do not support his alibi is more forceful than The data of the case. Similarly, the word figures is often used as a synonym for numerical data, especially in business and finance. When an accountant talks about sales figures, they are talking about the numerical data representing sales. You might hear someone say, Let us look at the figures for this month, which is a more conversational way of saying, Let us look at the data for this month. Another related term is metrics, which refers to specific standards of measurement. In business, you track metrics (like website clicks or sales revenue) to generate data.

Facts and Figures
Facts refer to proven truths, while figures specifically refer to numerical data, often used in financial or business contexts.

Before we argue, let us make sure we have all our facts straight.

In legal or investigative contexts, data is often referred to as evidence. Evidence is the available body of facts or information indicating whether a belief or proposition is true or valid. If police collect data from a crime scene, it becomes evidence in a trial. In academic research, you might also encounter the word findings, which refers to the conclusions reached after analyzing data. The researchers published their findings means they published the results of their data analysis. Finally, the word records is used when data is stored systematically over time, such as medical records or historical records. Choosing the right alternative depends heavily on the context. While data is an excellent, all-purpose word, substituting it with information, statistics, facts, figures, metrics, evidence, findings, or records can add nuance, clarity, and professionalism to your communication, demonstrating a deeper command of the English vocabulary.

Evidence
Information or data used specifically to prove or disprove something, commonly used in law, science, and debate.

The DNA test provided conclusive evidence of his identity.

The hospital keeps strict digital records for all its patients.

How Formal Is It?

フォーマル

"The empirical data indicate a statistically significant correlation."

ニュートラル

"The data shows that our sales are improving."

カジュアル

"I can't load the video, I'm out of data."

Child friendly

"Data is like puzzle pieces of information for a computer."

スラング

"He brought the receipts, he's got all the data."

豆知識

Because 'data' is technically a Latin plural, for centuries strict grammarians insisted it must take a plural verb ('the data are'). However, the singular 'datum' is almost never used today outside of highly specialized fields like surveying. In modern English, 'data' has evolved into a mass noun, like 'water' or 'air', making 'the data is' the most common and natural usage.

発音ガイド

UK /ˈdeɪ.tə/ or /ˈdɑː.tə/
US /ˈdeɪ.t̬ə/
The stress is always on the first syllable: DA-ta.
韻が合う語
beta zeta strata errata sonata cantata automata stigmata
よくある間違い
  • Pronouncing it as 'dat-uh' with a short 'a' like in 'cat'.
  • Stressing the second syllable: da-TA.
  • Adding an 's' to the end in speech: 'datas'.
  • Confusing the UK 'ah' pronunciation with the word 'daughter' in some accents.
  • Over-enunciating the 't' in American English instead of using the natural flap 't'.

難易度

読解 2/5

Very easy to recognize. Appears frequently in almost all types of texts.

ライティング 4/5

Requires understanding the singular/plural debate and using correct collocations.

スピーキング 3/5

Easy to say, but non-natives sometimes add an incorrect 's' (datas).

リスニング 2/5

Pronunciation varies (day-tuh vs dah-tuh) but both are easily understood.

次に学ぶべきこと

前提知識

information computer internet phone numbers

次に学ぶ

database analyze statistics privacy network

上級

empirical quantitative qualitative algorithm encryption

知っておくべき文法

Mass Nouns vs Count Nouns

Data is treated as a mass noun (like water), so we say 'much data', not 'many datas'.

Subject-Verb Agreement (Singular)

In everyday English, data takes a singular verb: 'The data is correct.'

Subject-Verb Agreement (Plural)

In formal academic English, data takes a plural verb: 'The data are correct.'

Compound Nouns

When used as an adjective, data is always singular: 'data entry' (not 'datas entry').

Indefinite Articles

You cannot use 'a' or 'an' with data. Use 'a piece of data' instead of 'a data'.

レベル別の例文

1

I need more data for my phone.

internet allowance

Used as an uncountable noun meaning mobile internet.

2

The data is on the computer.

information

Used with a singular verb 'is'.

3

Please save the data.

keep the information

Used as a direct object.

4

He lost all his data.

files and information

Used with a possessive pronoun.

5

What is your personal data?

personal details like name and age

Adjective 'personal' modifying data.

6

I have no data left this month.

zero internet allowance

Used with 'no' to show absence.

7

The data is very important.

the information matters a lot

Subject of a simple sentence.

8

Can you send me the data?

transmit the information

Used as a direct object in a question.

1

We collected data from fifty students.

gathered information

Used with the verb 'collect'.

2

The data shows that people like pizza.

information proves

Singular verb 'shows' agreeing with data.

3

You must protect your private data.

keep information safe

Adjective 'private' modifying data.

4

She entered the data into the system.

typed the information

Used with the verb 'enter'.

5

This data is not correct.

information is wrong

Used in a negative sentence with 'is'.

6

They store the data in the cloud.

keep information online

Used with the verb 'store'.

7

I need to look at the data first.

examine the information

Used after a preposition.

8

The company has a lot of customer data.

many details about buyers

Used with 'a lot of' as an uncountable noun.

1

The researchers are analyzing the raw data.

examining unprocessed information

Collocation 'raw data' used with 'analyze'.

2

There was a massive data breach at the bank.

information theft

Compound noun 'data breach'.

3

We do not have enough data to make a decision.

sufficient information

Used with 'enough' to indicate quantity.

4

The data suggests a strong link between diet and health.

information indicates

Used with the verb 'suggests'.

5

Please back up your data regularly.

make copies of your files

Used with the phrasal verb 'back up'.

6

Historical data helps us predict future trends.

past information

Collocation 'historical data'.

7

The app uses mobile data in the background.

cellular internet

Collocation 'mobile data'.

8

They published the data on their official website.

released the information

Used with the verb 'publish'.

1

Big data is transforming the way corporations operate.

massive datasets

Collocation 'big data' used as a singular subject.

2

The empirical data contradicts the initial hypothesis.

observed evidence

Collocation 'empirical data'.

3

Data encryption is essential for maintaining client confidentiality.

securing information with code

Compound noun 'data encryption'.

4

We need to extract relevant data points from this report.

specific pieces of information

Phrase 'data points' used as a countable plural.

5

The new legislation strictly regulates cross-border data flows.

movement of information between countries

Compound noun 'data flows'.

6

Qualitative data provides context that numbers alone cannot.

descriptive information

Collocation 'qualitative data'.

7

The system automatically synchronizes data across all devices.

updates information everywhere

Used with the verb 'synchronize'.

8

Data privacy has become a major concern for consumers.

protection of personal information

Compound noun 'data privacy'.

1

The algorithm leverages vast datasets to optimize predictive modeling.

uses large collections of information

Use of 'datasets' as a countable plural.

2

These data are indicative of a systemic failure within the infrastructure.

this information shows

Strict formal usage treating data as a plural noun with 'are'.

3

Data integrity must be maintained throughout the migration process.

accuracy and consistency of information

Collocation 'data integrity'.

4

The commodification of user data raises profound ethical questions.

turning personal information into a product

Advanced abstract context involving ethics.

5

We must synthesize the disparate data streams into a cohesive dashboard.

combine different sources of information

Collocation 'data streams' and verb 'synthesize'.

6

The study's methodology failed to account for inherent data bias.

prejudice within the collected information

Collocation 'data bias'.

7

Data sovereignty laws dictate that information must be stored locally.

national control over digital information

Advanced legal and technical collocation 'data sovereignty'.

8

The anomaly was detected only after rigorous data scrubbing.

cleaning and correcting information

Collocation 'data scrubbing'.

1

The epistemological shift towards data-driven governance fundamentally alters the social contract.

philosophy of using information for rule

Compound adjective 'data-driven' in a highly abstract philosophical context.

2

In econometrics, the heteroskedasticity of the data invalidates standard regression models.

unequal variance in the information

Highly specialized academic jargon integrating 'data'.

3

The obfuscation of metadata is a deliberate tactic to circumvent surveillance.

hiding data about data

Use of the prefix 'meta-' with data in a security context.

4

The corpus provides empirical data corroborating the morphological evolution of the dialect.

evidence supporting language change

Linguistic and academic usage of 'empirical data'.

5

Interoperability standards are paramount to prevent data silos within large conglomerates.

isolated pools of information

Collocation 'data silos' in corporate architecture.

6

The heuristic algorithm parses unstructured data with unprecedented semantic accuracy.

analyzes unorganized information

Collocation 'unstructured data' in computer science.

7

Data exfiltration occurred via a sophisticated zero-day exploit.

unauthorized transfer of information

Cybersecurity jargon 'data exfiltration'.

8

The ontological framework dictates how the data is categorized and instantiated within the system.

philosophical structure of information

Philosophical and computer science integration of 'data'.

よく使う組み合わせ

collect data
analyze data
raw data
data breach
big data
historical data
data entry
store data
sensitive data
mobile data

よく使うフレーズ

data-driven

— Determined by or dependent on the collection and analysis of data. It describes a logical approach to decision making.

We are a data-driven company.

run out of data

— To use up all of one's mobile internet allowance. Common in everyday conversation about smartphones.

I cannot watch the video because I ran out of data.

data mining

— The practice of analyzing large databases in order to generate new information. Often used in tech and business.

Data mining helps retailers understand shopping habits.

data processing

— A series of operations on data, especially by a computer, to retrieve, transform, or classify information. A fundamental computing term.

The new chip speeds up data processing.

data set

— A collection of related sets of information that is composed of separate elements but can be manipulated as a unit by a computer. Used in science and tech.

The researcher downloaded a massive data set.

data privacy

— The relationship between the collection and dissemination of data, technology, the public expectation of privacy, and the legal and political issues surrounding them. A major modern concern.

Data privacy laws are becoming stricter.

data protection

— The process of safeguarding important information from corruption, compromise or loss. Crucial for businesses.

The IT department is responsible for data protection.

data plan

— A subscription from a mobile phone carrier that allows a user to access the internet. A very common consumer phrase.

I need to upgrade my data plan to unlimited.

data point

— A discrete unit of information. Any single fact or piece of information. Used to refer to one specific item in a larger collection.

That is an interesting data point, but it does not prove the theory.

data base

— A structured set of data held in a computer, especially one that is accessible in various ways. Usually written as one word: database.

The customer's name is not in our database.

よく混同される語

data vs datum

Datum is the actual singular form of data, but it is almost never used in modern English. People use 'data point' instead.

data vs information

Data is raw and unprocessed. Information is data that has been organized and analyzed to have meaning.

data vs date

A date is a specific day on a calendar. Data is a collection of facts. They look similar but have completely different meanings.

慣用句と表現

"crunch the numbers"

— To process a large amount of data or perform complex calculations. Often used in business or finance.

Give me a day to crunch the numbers before I give you an answer.

informal
"hard facts"

— Indisputable data or evidence. Information that cannot be argued against.

We need hard facts, not just rumors.

neutral
"the numbers speak for themselves"

— The data is so clear and convincing that no further explanation is needed. Used to emphasize the strength of the evidence.

I do not need to defend the strategy; the numbers speak for themselves.

neutral
"a mine of information"

— Someone or something that has a vast amount of data or knowledge. Used to describe a very helpful resource.

That textbook is a mine of information on the subject.

informal
"on the record"

— Officially recorded as data or evidence. Used when making a public or official statement.

I want to state on the record that I oppose this plan.

formal
"off the record"

— Not made as an official or attributable statement; not to be recorded as data. Used when speaking confidentially.

Off the record, I think the company is in trouble.

informal
"for the record"

— Said before stating a fact or piece of data so that it is officially known and remembered. Used to clarify a position.

For the record, I was not present at that meeting.

neutral
"track record"

— The past achievements or performance of a person, organization, or product, considered as data to predict future success. Used in business and sports.

She has an excellent track record in sales.

neutral
"paper trail"

— A series of documents providing written evidence or data of a sequence of events or activities. Often used in investigations.

The auditors followed the paper trail to find the missing money.

neutral
"connect the dots"

— To bring together various pieces of data or information to understand the whole picture. Used when solving a problem or mystery.

Once you connect the dots, the solution is obvious.

informal

間違えやすい

data vs statistics

Both refer to numbers used for analysis.

Data is the raw numbers collected. Statistics is the mathematical science of analyzing those numbers, or the results of that analysis.

We gathered the data to produce the final statistics.

data vs metrics

Both are used in business to measure success.

Metrics are specific standards of measurement (like 'clicks per minute'). Data is the actual numbers recorded by those metrics.

Our key metrics generate a lot of useful data.

data vs evidence

Both are used to prove a point.

Data is neutral facts. Evidence is data specifically presented to prove or disprove a hypothesis or a legal case.

The phone data was used as evidence in the trial.

data vs analytics

Often used together (data analytics).

Data is the information itself. Analytics is the process or software used to discover patterns in the data.

We use advanced analytics to understand our customer data.

data vs facts

Data is defined as a collection of facts.

Facts are individual truths. Data is the collective body of those truths, often in a digital or numerical format.

It is a fact that water boils at 100 degrees; the data from the experiment proves it.

文型パターン

A1

Subject + need/want + data.

I need more data.

A2

The data + shows/says + that + clause.

The data shows that sales are up.

B1

Subject + collect/analyze + data + to + verb.

We collect data to understand the market.

B2

Based on the data, + subject + verb.

Based on the data, we should change our strategy.

C1

The data + indicate/suggest + a correlation between X and Y.

The data suggest a correlation between diet and health.

C2

Notwithstanding the preliminary data, + subject + verb.

Notwithstanding the preliminary data, the conclusion remains robust.

B1

There is + adjective + data + preposition + noun.

There is reliable data on climate change.

B2

Subject + rely on + data + to + verb.

The algorithm relies on user data to function.

語族

名詞

形容詞

関連

使い方

frequency

Extremely high. It is one of the most commonly used nouns in modern English.

よくある間違い
  • He collected many datas for his project. He collected a lot of data for his project.

    Data is an uncountable mass noun (or an already plural noun). You cannot add an 's' to it, and you should use 'a lot of' instead of 'many'.

  • I found a very interesting data in the report. I found a very interesting piece of data in the report.

    You cannot use the singular article 'a' directly before data. You must use a measure word phrase like 'a piece of' or 'a data point'.

  • The data are showing that sales is down. The data shows that sales are down.

    While 'data are' is technically correct in formal science, mixing it with incorrect grammar elsewhere is confusing. In standard English, use 'data shows'.

  • I need to buy more informations for my phone. I need to buy more data for my phone.

    When talking about mobile phone internet allowance, the specific word is 'data', not 'information'.

  • The datas entry job is very boring. The data entry job is very boring.

    When data is used as an adjective to modify another noun (compound noun), it never takes an 's', even if it refers to plural items.

ヒント

Singular vs Plural

When in doubt, use 'data is'. It is accepted in 95% of modern contexts. Only use 'data are' if you are writing a formal scientific paper.

Use Collocations

To sound like a native speaker, pair data with strong verbs. Don't just 'get' data; 'collect', 'gather', or 'analyze' data.

Be Consistent

Whether you choose to say DAY-tuh or DAH-tuh, stick with it. Switching back and forth in the same conversation sounds unnatural.

Avoid Repetition

If you are writing an essay and keep using the word data, switch it up. Use 'findings', 'statistics', or 'information' to keep your writing fresh.

Mobile Context

Remember that in casual conversation, 'data' almost always means your phone's internet. 'I need data' means 'I need Wi-Fi/internet'.

Never Add an 'S'

Erase the word 'datas' from your vocabulary. It does not exist in English. It is always just 'data'.

Compound Words

Learn compound words like 'database' and 'dataset'. They are crucial for sounding professional in any office environment.

Data Point

If you want to talk about one specific number on a chart, call it a 'data point'. This sounds highly professional and accurate.

Context Clues

When reading the news, if you see 'data', expect numbers or statistics to follow in the next sentence to support the claim.

Mass Noun Rule

Treat data like the word 'water'. You can't have 'a water' or 'waters'. You have 'some water' or 'a lot of water'. The same applies to data.

暗記しよう

記憶術

Think of DATA as 'Digital And Technical Answers'. It is the information you need to solve a problem on a computer.

視覚的連想

Imagine a giant funnel. You pour millions of tiny numbers and letters (raw data) into the top, and out of the bottom comes a single, clear lightbulb (information/answers).

Word Web

Information Numbers Computer Internet Facts Statistics Analysis Privacy

チャレンジ

Look at your smartphone's settings. Find the section labeled 'Data Usage' or 'Mobile Data'. Write down how much data you have used this month and what app used the most.

語源

The word data first appeared in English in the 1640s. It was borrowed directly from Latin. In Latin, it is the plural form of the word 'datum'. The Latin word 'datum' is the neuter past participle of the verb 'dare', which means 'to give'.

元の意味: In its original Latin context, data meant 'things given' or 'items of information granted or admitted'. It was used in mathematics and philosophy to describe the known facts from which an inference could be drawn.

Indo-European -> Italic -> Latin -> English

文化的な背景

Be aware that requesting 'personal data' (like age, marital status, or religion) can be legally restricted or culturally sensitive in many Western countries, particularly during job interviews.

In everyday English-speaking cultures, asking 'Do you have data?' usually means 'Does your phone have an internet connection right now?' rather than asking if someone possesses facts.

The character 'Data' in Star Trek: The Next Generation, an android whose name reflects his vast computational abilities. The documentary 'The Great Hack', which explores the Cambridge Analytica data scandal. The phrase 'Data is the new oil', coined by British mathematician Clive Humby in 2006.

実生活で練習する

実際の使用場面

Using a Mobile Phone

  • mobile data
  • data roaming
  • unlimited data
  • run out of data

Business and Finance

  • sales data
  • data analysis
  • data-driven decisions
  • customer data

Science and Research

  • collect data
  • raw data
  • empirical data
  • data set

Technology and Computing

  • data processing
  • data storage
  • database
  • data backup

News and Privacy

  • data breach
  • personal data
  • data protection
  • data privacy laws

会話のきっかけ

"Do you have an unlimited data plan for your phone, or do you have a limit?"

"How do you feel about big tech companies collecting your personal data?"

"Have you ever lost important data because your computer crashed?"

"Do you think schools should teach children about data privacy earlier?"

"In your job, do you have to work with a lot of data or numbers?"

日記のテーマ

Write about a time you ran out of mobile data when you really needed it. What happened?

Do you think the convenience of targeted advertising is worth giving up your personal data? Why or why not?

Explain the difference between 'data' and 'information' in your own words, using an example from your life.

If you were a scientist, what kind of data would you want to collect and study?

Describe how your workplace or school uses data to make decisions.

よくある質問

10 問

Historically, it is plural (the singular is datum). However, in modern everyday English and business, it is almost universally treated as a singular mass noun (like 'information'). You can say 'the data is' in most situations, but use 'the data are' in strict academic writing.

No, 'datas' is never correct. Because data is already plural or an uncountable mass noun, adding an 's' is grammatically wrong. If you have a lot of it, just say 'a lot of data'.

There are two correct ways: DAY-tuh and DAH-tuh. DAY-tuh is more common in American English, while DAH-tuh is common in British English. Both are widely understood and accepted everywhere.

Mobile data refers to the internet connection provided by your cellular network provider (like 4G or 5G), as opposed to a Wi-Fi connection. When you 'run out of data', you have used your monthly internet allowance.

Big data is a term used to describe extremely large and complex datasets that cannot be analyzed by traditional software. It usually refers to the massive amounts of information collected by tech companies to analyze human behavior.

Data refers to raw, unorganized facts and numbers. Information is data that has been processed, organized, and structured so that it makes sense and is useful to humans.

No, you cannot use the article 'a' with data. If you want to refer to one single item, you should say 'a piece of data' or 'a data point'.

A data breach is a security incident where unauthorized people (like hackers) gain access to sensitive, protected, or confidential data, such as passwords or credit card numbers.

If a person or company is data-driven, it means they make decisions based on hard facts, numbers, and analysis, rather than guessing or relying on intuition.

A database is an organized collection of data stored and accessed electronically on a computer system. It allows for easy searching, updating, and management of information.

自分をテスト 200 問

writing

Write a sentence using the phrase 'mobile data'.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a sentence explaining what a 'data breach' is.

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a sentence using 'data' as a singular noun (with 'is').

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a sentence using the phrase 'raw data'.

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正解! おしい! 正解:
writing

Write a sentence about why 'data privacy' is important.

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正解! おしい! 正解:
writing

Write a sentence using the verb 'analyze' with 'data'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'big data'.

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正解! おしい! 正解:
writing

Write a sentence explaining what it means to be 'data-driven'.

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正解! おしい! 正解:
writing

Write a sentence using the word 'database'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'data entry'.

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正解! おしい! 正解:
writing

Write a sentence using 'data' in a formal academic context (with 'are').

Well written! Good try! Check the sample answer below.

正解! おしい! 正解:
writing

Write a sentence comparing 'data' and 'information'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'historical data'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'data point'.

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正解! おしい! 正解:
writing

Write a sentence about 'data encryption'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'qualitative data'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'quantitative data'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'data mining'.

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正解! おしい! 正解:
writing

Write a sentence about 'data protection'.

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正解! おしい! 正解:
writing

Write a sentence using the phrase 'data set'.

Well written! Good try! Check the sample answer below.

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speaking

Read this aloud:

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listening

Why can't the person download the app?

正解! おしい! 正解:
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listening

What does the data show?

正解! おしい! 正解:
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listening

Where should the data be entered?

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listening

What happened during the data breach?

正解! おしい! 正解:
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listening

What needs to be done before publishing?

正解! おしい! 正解:
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listening

What is too confusing to understand?

正解! おしい! 正解:
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listening

What is used to predict customer purchases?

正解! おしい! 正解:
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listening

Where should the data be backed up?

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listening

What is a major concern for users?

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listening

Where are the data presented?

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listening

What kind of company are they?

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listening

What is interesting but not enough?

正解! おしい! 正解:
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listening

What keeps messages safe?

正解! おしい! 正解:
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listening

What shows a pattern of growth?

正解! おしい! 正解:
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listening

What should you turn off to avoid charges?

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/ 200 correct

Perfect score!

関連コンテンツ

Technologyの関連語

abautoal

C1

さまざまなデータ構造または言語単位の自動的な整合と統合のための体系的な方法論または技術フレームワークであり、手動介入なしで同期を保証します。

abautoence

C1

自己管理メカニズムまたは自律ルーチンを通じてプロセスを体系的に自動化または合理化すること。効率を最大化し、認知負荷を軽減するために、手動タスクをバックグラウンドの技術的または習慣的なシステムに委任する行為を指します。

ablogtion

C1

ablogtionとは、オンライン上の評判を管理するために、プラットフォームからデジタル記録や時系列のログエントリを体系的に削除、消去、またはスクラブすることを意味します。

abmanless

C1

完全な自動化を通じて、システムから手動の人間による介入の必要性を取り除くこと。

activation

B2

アクティベーション(有効化)とは、装置やソフトウェアを使える状態にすることです。例えば、新しいスマホの初期設定などです。

actuator

B2

アクチュエータは、電気や空気のエネルギーを物理的な動きに変える機械部品です。

adpaterable

C1

システムやデバイスをアダプターに対応できるように改造または設定すること。

adpaterward

C1

アダプターワード(adapterward)とは、初期組み立て後に技術システムに統合される二次的な調整または補足コンポーネントであり、新しい規格との互換性を確保します。これは、レガシー部分と最新部分との間の後期同期を容易にする物理的またはデジタルの「ブリッジ」を具体的に指します。

aerospace

B2

地球の大気圏内または宇宙空間を飛行する航空機や宇宙船の設計、製造、運用に関連するもの。

algorithms

B2

アルゴリズムとは、ある特定の問題を解くための、段階的な手順や計算方法のことです。

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