B2 adjective #5,000 よく出る 2分で読める

accumulation

Accumulation is the process of collecting things over time until you have a large amount.

Explanation at your level:

Accumulation means having a lot of things together. Imagine you have one toy, then two, then ten. Now you have an accumulation of toys. It is like a big pile!

When you keep adding things to a pile, that is an accumulation. You can have an accumulation of snow outside in winter or an accumulation of old papers on your desk. It just means 'a lot of something gathered together'.

We use accumulation to describe how things grow over time. It is common to talk about the accumulation of experience or the accumulation of money. It is a slightly formal word, so you might see it in news reports or textbooks.

In B2 English, we use accumulation to discuss processes. For example, the accumulation of evidence in a court case or the accumulation of debt. It suggests a gradual, sometimes unintentional, increase that leads to a significant result.

At the C1 level, accumulation is used to describe complex systems. We talk about the accumulation of cultural capital or the accumulation of data in digital systems. It implies a sophisticated understanding of how small inputs create large-scale outcomes.

At the C2 level, we analyze accumulation in philosophical or historical contexts. We might discuss the accumulation of power within a regime or the accumulation of historical trauma. It is a precise term for describing the weight of history and the layering of events that define our current reality.

30秒でわかる単語

  • It means gathering over time.
  • It is a noun.
  • It is often used in formal contexts.
  • It comes from the Latin for heap.

Think of accumulation as the result of a slow, steady process. It is not something that happens in a single flash; rather, it is the result of adding one piece to another over time.

You might see an accumulation of dust on a shelf that hasn't been cleaned in months, or an accumulation of wealth in a savings account after years of hard work. It is a very useful word because it captures the idea of growth through persistence.

The word accumulation comes from the Latin verb accumulare, which is a combination of ad- (to) and cumulus (a heap or pile). Just like a cumulus cloud in the sky looks like a big pile of cotton, the word implies building up a heap.

It entered the English language in the 16th century. Historically, it was often used in legal or financial contexts, but it has since expanded to describe everything from geology to personal habits.

You will often hear this word in formal or academic settings. Scientists talk about the accumulation of toxins, while economists discuss the accumulation of capital.

In casual conversation, we might use it to describe a messy room: 'There's an accumulation of laundry on that chair!' It is a versatile noun that pairs well with verbs like prevent, reduce, or witness.

While 'accumulation' itself isn't the core of many idioms, it relates to concepts like 'snowball effect', which means something grows in size as it moves. Another is 'nest egg', which refers to the accumulation of savings for the future.

We also say 'piling up', which is the casual, phrasal verb version of accumulating. 'Adding up' is another common way to describe the same process in daily life.

Accumulation is a non-count noun in most contexts, meaning we usually don't say 'an accumulations.' It follows the standard stress pattern where the emphasis is on the -la- syllable.

The pronunciation is /əˌkjuːmjəˈleɪʃən/. It rhymes loosely with words like relation or foundation, though it is much longer. Remember to enunciate the 'mju' sound clearly!

Fun Fact

It shares a root with cumulus clouds!

Pronunciation Guide

UK /əˌkjuːmjəˈleɪʃən/

Clear and rhythmic.

US /əˌkjuːmjəˈleɪʃən/

Slightly faster on the 'la' sound.

Common Errors

  • Forgetting the 'm' sound
  • Misplacing the stress
  • Pronouncing 'c' as 's'

Rhymes With

relation foundation station creation nation

Difficulty Rating

読解 2/5

Moderate

Writing 2/5

Moderate

Speaking 2/5

Moderate

リスニング 2/5

Moderate

What to Learn Next

Prerequisites

pile gather collect

Learn Next

accretion aggregation amass

上級

capitalization consolidation

Grammar to Know

Noun usage

The accumulation is here.

Uncountable nouns

Much accumulation.

Suffixes

-tion suffix.

Examples by Level

1

I have an accumulation of stickers.

I have many stickers.

Noun usage

1

The accumulation of snow was high.

2

He has an accumulation of books.

3

The accumulation of dust is bad.

4

She has an accumulation of coins.

5

The accumulation of mail is heavy.

6

I saw an accumulation of leaves.

7

The accumulation of work is hard.

8

The accumulation of water is deep.

1

The accumulation of wealth takes time.

2

He noted the accumulation of evidence.

3

The accumulation of debt is a problem.

4

She studied the accumulation of data.

5

The accumulation of stress is unhealthy.

6

We observed the accumulation of ice.

7

The accumulation of waste is a concern.

8

The accumulation of knowledge is vital.

1

The gradual accumulation of power was noted.

2

His accumulation of assets is impressive.

3

The accumulation of pollutants is dangerous.

4

We analyzed the accumulation of interest.

5

The accumulation of memories is precious.

6

The accumulation of facts led to a theory.

7

She tracked the accumulation of sales.

8

The accumulation of evidence proved his guilt.

1

The accumulation of historical data is vast.

2

He discussed the accumulation of cultural capital.

3

The accumulation of systemic errors is concerning.

4

Their accumulation of influence was strategic.

5

The accumulation of wealth creates inequality.

6

We studied the accumulation of sediment.

7

The accumulation of experience is invaluable.

8

The accumulation of evidence was overwhelming.

1

The accumulation of bureaucratic layers is stifling.

2

He analyzed the accumulation of capital in the region.

3

The accumulation of institutional knowledge is key.

4

The accumulation of historical grievances remains.

5

The accumulation of wealth is not the only goal.

6

The accumulation of artistic works is a legacy.

7

The accumulation of data requires management.

8

The accumulation of evidence changed the verdict.

類義語

反対語

dispersal depletion reduction

よく使う組み合わせ

gradual accumulation
accumulation of wealth
accumulation of data
prevent the accumulation
rapid accumulation
accumulation of evidence
accumulation of debt
significant accumulation
accumulation of knowledge
accumulation of pollutants

Idioms & Expressions

"snowball effect"

Something that grows larger as it goes

The debt had a snowball effect.

neutral

"pile up"

To accumulate or gather in a heap

The work is piling up.

casual

"nest egg"

Savings built up over time

She has a nice nest egg.

neutral

"add up"

To increase in total

Small expenses add up.

neutral

"stockpile"

To store a large supply

They stockpiled food.

neutral

Easily Confused

accumulation vs Collection

Both mean gathering.

Collection is intentional.

A collection of stamps.

accumulation vs Accumulate

Same root.

Verb vs Noun.

I accumulate wealth.

accumulation vs Accretion

Both mean growth.

Accretion is natural.

Geological accretion.

accumulation vs Aggregation

Both mean total.

Aggregation is grouping.

Data aggregation.

Sentence Patterns

B1

The accumulation of [noun] is [adj].

The accumulation of debt is bad.

B2

We witnessed the accumulation of [noun].

We witnessed the accumulation of snow.

B1

Prevent the accumulation of [noun].

Prevent the accumulation of dust.

B2

His accumulation of [noun] grew.

His accumulation of wealth grew.

A2

There is an accumulation of [noun].

There is an accumulation of mail.

語族

Nouns

accumulator A device or person that accumulates

Verbs

accumulate To gather over time

Adjectives

accumulative Tending to accumulate

関連

cumulus Root word meaning heap

How to Use It

frequency

7

Formality Scale

Academic Formal Neutral Casual

よくある間違い

Using 'accumulate' as a noun. Use 'accumulation'.
Accumulate is the verb.
Pluralizing it as 'accumulations'. Use 'accumulation'.
It is usually uncountable.
Confusing it with 'collection'. Use 'collection' for items you choose.
Accumulation is often involuntary.
Using 'accumulation' for people. Use 'gathering' or 'crowd'.
Accumulation is for things/data.
Misspelling as 'acumulation'. Accumulation.
Needs two 'c's.

Tips

💡

Memory Palace

Imagine a pile of coins growing in your room.

💡

Professional Tone

Use it in reports to sound smart.

🌍

News Context

Listen for it in weather reports.

💡

Noun Check

Always treat it as a noun.

💡

Slow Down

Break it into 5 syllables.

💡

Verb vs Noun

Don't say 'I accumulation'.

💡

Cloud Connection

Cumulus clouds are piles of air!

💡

Flashcards

Put 'accumulate' on one side and 'accumulation' on the other.

Memorize It

Mnemonic

A-C-C-U-M (A Cloud Can Understand Mountains) - think of a growing pile.

Visual Association

A snowball rolling down a hill getting bigger.

Word Web

growth pile collection increase

チャレンジ

Count how many things you accumulate in your room today.

語源

Latin

Original meaning: To heap up

文化的な背景

None.

Used frequently in financial and environmental news.

Often used in sci-fi regarding the accumulation of power.

Practice in Real Life

Real-World Contexts

At work

  • accumulation of tasks
  • accumulation of reports

At school

  • accumulation of knowledge
  • accumulation of notes

Weather

  • accumulation of snow
  • accumulation of ice

Finance

  • accumulation of wealth
  • accumulation of interest

Conversation Starters

"How do you handle the accumulation of tasks at work?"

"What do you think about the accumulation of wealth?"

"Have you ever seen a large accumulation of snow?"

"How do you manage the accumulation of emails?"

"Is the accumulation of knowledge the most important goal?"

Journal Prompts

Describe an accumulation of items in your house.

Write about the accumulation of your experiences this year.

How does the accumulation of small habits change a life?

Discuss the pros and cons of the accumulation of data.

よくある質問

8 問

No, it is a noun. The verb is accumulate.

It is rare; usually, it is uncountable.

uh-kyoo-myuh-LAY-shun.

Yes, it is often used in professional contexts.

Latin 'cumulus' meaning heap.

No, use 'group' or 'crowd' instead.

It depends on the context.

Collection or buildup.

自分をテスト

fill blank A1

The ___ of snow is big.

正解! おしい! 正解: accumulation

It describes the pile.

multiple choice A2

Which means to gather?

正解! おしい! 正解: accumulate

Accumulate is the verb.

true false B1

Accumulation is a verb.

正解! おしい! 正解: 間違い

It is a noun.

match pairs B1

Word

意味

All matched!

They are synonyms.

sentence order B2

下の単語をタップして文を組み立てよう
正解! おしい! 正解:

Standard order.

スコア: /5

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abcarndom

C1

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C1

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abcitless

C1

物事の根本的な部分が欠けていて、計画や考えが成り立たない状態のことです。

abcognacy

C1

The state of being unaware or lacking knowledge about a specific subject, situation, or fact. It describes a condition of non-recognition or a gap in cognitive awareness, often used in technical or specialized academic contexts.

abdocion

C1

中心軸から離れていく動きや論理のこと。技術的な文脈で、何かが外側に向かって引っ張られる様子を表します。

abdocly

C1

Abdoclyは、隠れていたり奥まっていたりして、すぐには目に見えない状態を指します。

aberration

B2

A departure from what is normal, usual, or expected, typically one that is unwelcome. It refers to a temporary change or a deviation from the standard path or rule.

abfacible

C1

To systematically strip or remove the external surface or facade of a structure or material for analysis, restoration, or cleaning. It specifically refers to the technical act of uncovering underlying layers while preserving the integrity of the core material.

abfactency

C1

事実や客観的な現実から完全に切り離されている状態のことだよ。論理的には筋が通っていても、現実とは全く関係のない議論などを指す時に使うね。

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