Thirty is the cardinal number 30, used frequently in everyday English for various quantitative expressions.
30초 단어
- Represents the number 30.
- Used for counting, age, time, and measurements.
- A basic and common English numeral.
Overview
Thirty is a fundamental cardinal number in English, representing the quantity of 30. It is a key component of the number system, used extensively in counting, measuring, and expressing quantities. As a basic numeral, it is typically one of the first numbers learned by English language learners.
Thirty is used in various contexts, primarily for counting objects, indicating age, specifying time, and denoting measurements. It follows the pattern of tens (ten, twenty, thirty, forty, etc.) and precedes forty. It can be used as a standalone number or as part of larger numbers (e.g., thirty-five).
Counting: 'I have thirty books.'
Age: 'She is thirty years old.'
Time: 'The meeting starts at thirty minutes past the hour.' (though 'half past' is more common)
Measurements: 'The room is thirty feet long.'
Prices: 'The ticket costs thirty dollars.'
Three is the number 3. Thirty is ten times the value of three (3 x 10 = 30).
Thirteen represents the number 13, while thirty represents 30. They sound similar but have very different numerical values.
Thirty-three is a compound number (33), whereas thirty is simply 30. Thirty is the base number for all numbers from thirty to thirty-nine.
예시
My brother turned thirty last week.
everydayMi hermano cumplió treinta la semana pasada.
The project deadline is the thirtieth of April.
formalLa fecha límite del proyecto es el treinta de abril.
It costs about thirty bucks.
informalCuesta como treinta dólares.
The study involved thirty participants from diverse backgrounds.
academicEl estudio involucró a treinta participantes de diversos orígenes.
자주 쓰는 조합
자주 쓰는 구문
thirty-something
treinta y tantos
thirty minutes past
treinta minutos después de
at thirty
a los treinta
자주 혼동되는 단어
Thirteen represents the number 13 (1 and 3), while thirty represents the number 30 (3 and 0). They sound similar, especially the '-teen' and '-ty' endings, but are numerically distinct.
Three is the number 3. Thirty is ten times the value of three (3 x 10 = 30). They share the first letter but have different spellings and values.
문법 패턴
How to Use It
사용 참고사항
Thirty is a very common numeral used across all registers of English. It is typically written as a word ('thirty') in less formal contexts or when emphasizing the number itself. In more technical or financial documents, the numeral '30' is often preferred.
자주 하는 실수
Learners sometimes confuse the spelling of thirty with 'thir-tee' or 'thir-tey'. Remember the 'ir' and the 'ty' ending. Also, differentiating 'thirty' (30) from 'thirteen' (13) is crucial.
Tips
Practice Counting Past Twenty
Focus on mastering the numbers from twenty to one hundred. Thirty is a key stepping stone in this sequence.
Thirty vs. Thirteen
Be careful not to confuse 'thirty' (30) with 'thirteen' (13), as they sound similar but represent very different quantities.
Milestone Ages
In many cultures, reaching the age of thirty is considered a significant milestone, often marking the transition into full adulthood or a new phase of life.
어원
The word 'thirty' comes from the Old English 'þrītig', which is derived from 'þrī' meaning 'three' and a suffix indicating 'ten'. It essentially means 'three tens'.
문화적 맥락
The age of thirty is often seen as a significant milestone in many Western cultures, marking a transition into a new decade of adulthood. It's sometimes associated with settling down or reaching a certain level of maturity.
암기 팁
Think of 'thirty' as 'three' and 'ty' (like 'tie'). Imagine tying three things together to get the number 30. Or, remember that thirty is 'three tens'.
자주 묻는 질문
4 질문The word 'thirty' is spelled T-H-I-R-T-Y. It's important to note the 'ir' combination in the middle.
The number that comes immediately before thirty is twenty-nine (29). The number that comes immediately after thirty is thirty-one (31).
Whether thirty is considered 'large' depends on the context. In everyday situations like counting items or age, it's a moderate number. In contexts like population size or distance, it would be considered small.
Thirty is often used to indicate the half-hour mark. For example, 'half past two' is the same as 'two thirty'.
셀프 테스트
There are ___ days in June.
June has exactly 30 days.
Which of these represents thirty?
Thirty is the number 30.
Build a sentence using 'old', 'is', 'she', 'thirty', 'years'.
This is the standard grammatical structure for stating someone's age.
점수: /3
Summary
Thirty is the cardinal number 30, used frequently in everyday English for various quantitative expressions.
- Represents the number 30.
- Used for counting, age, time, and measurements.
- A basic and common English numeral.
Practice Counting Past Twenty
Focus on mastering the numbers from twenty to one hundred. Thirty is a key stepping stone in this sequence.
Thirty vs. Thirteen
Be careful not to confuse 'thirty' (30) with 'thirteen' (13), as they sound similar but represent very different quantities.
Milestone Ages
In many cultures, reaching the age of thirty is considered a significant milestone, often marking the transition into full adulthood or a new phase of life.
예시
4 / 4My brother turned thirty last week.
Mi hermano cumplió treinta la semana pasada.
The project deadline is the thirtieth of April.
La fecha límite del proyecto es el treinta de abril.
It costs about thirty bucks.
Cuesta como treinta dólares.
The study involved thirty participants from diverse backgrounds.
El estudio involucró a treinta participantes de diversos orígenes.
Related Content
맥락에서 배우기
general 관련 단어
about
A1'about'은 어떤 주제에 관해 이야기할 때 쓰거나, 대략적인 수량이나 정도를 나타낼 때 사용해요.
above
A2어떤 것보다 더 높은 위치, 바로 위를 나타내요.
accident
A2예기치 않게 발생하는 나쁜 사건으로, 피해나 부상을 입힐 수 있어요.
action
A2어떤 목표를 이루기 위해 실제로 행동하는 것을 말해.
after
A2'after'는 시간상이나 공간상으로 어떤 것의 뒤에 오는 것을 의미해요.
afterward
A2At a later or subsequent time.
again
A2'again'은 어떤 일이 다시 일어나거나 반복될 때 사용하는 말이에요.
aged
B1어떤 사람이나 물건이 특정한 나이를 먹었음을 나타낼 때 써.
alive
A2죽지 않고 생명이 있는 상태를 의미해.
all
A2'all'은 어떤 것의 전부 또는 모든 개별적인 것을 가리킬 때 사용해요.
