extent

extent — noun

1. the total area, length, or amount that something covers or takes up, often measu

1.名詞B2
釋義

the total area, length, or amount that something covers or takes up, often measured from one edge or limit to another.

例句

The full extent of the forest became visible after the fog lifted.

the full extent of [noun]

Surveyors mapped the extent of the flood damage along the river.

extent of [damage/area]

同義詞
  • size

    more general; used for physical dimensions of any object

  • area

    specific to two-dimensional surface measurement

  • magnitude

    more formal; often used for scale or importance

反義詞
  • limit

    the furthest boundary or edge of something

文法句型

the extent of [something]

用法筆記

Often used with 'full' or 'true' to emphasise the complete size or boundary of something. Compare with 'scope' (range of activity) and 'scale' (relative size).

常見錯誤

The extend of the park is 10 km.
The extent of the park is 10 km.
💡'extent' is a noun; 'extend' is a verb.

2. how much something is true, happens, or affects a situation — the level or stren

2.名詞B2
釋義

how much something is true, happens, or affects a situation — the level or strength of an action, feeling, or condition.

例句

Sahil was surprised by the extent of public support for the new policy.

extent of [support/damage/interest]

The extent to which stress affects sleep varies from person to person.

the extent to which + clause

同義詞
  • degree

    more precise when measuring steps on a scale; 'extent' suggests a wider, less exact range

  • level

    more concrete; often used for measurable quantities (e.g., noise level, water level)

  • magnitude

    more formal; emphasises greatness or importance

文法句型

the extent to which

to a ... extent

用法筆記

The most flexible sense. Can be followed by 'of + noun' or 'to which + clause'. Often interchangeable with 'degree' in abstract contexts, though 'extent' suggests a broader range.

常見錯誤

I didn't know the extend of the problem.
I didn't know the extent of the problem.
💡'extent' is a noun meaning degree/range; 'extend' is a verb.

3. used to say that someone has a feeling or does something so strongly that a part

3.名詞B2
釋義

used to say that someone has a feeling or does something so strongly that a particular result follows.

例句

Cyrus admired his grandfather to the extent that he chose the same career path.

to the extent that + result clause

The novel affected Aoi to the extent that she could not stop thinking about it for days.

同義詞

文法句型

to the extent that + clause

用法筆記

Emphasises emotional or psychological intensity leading to a consequence. More formal than 'so much that'. Distinguish from sense 4, where the focus is on causation rather than emotional intensity.

常見錯誤

He was tired to the extent that he fell asleep.' (odd — 'so tired that' is more natural).
She believed in the project to the extent that she invested her own savings.
💡Use for strong commitment or conviction, not everyday tiredness.

4. used to describe a situation in which something develops or changes up to a spec

4.名詞B2
釋義

used to describe a situation in which something develops or changes up to a specific stage, and that change then brings about a particular outcome.

例句

The company's losses grew to the extent that it had to close three factories.

to the extent that + causal result

Jessica's story changed to the extent that no one recognised the original version.

同義詞

文法句型

to the extent that + clause

用法筆記

Focuses on a degree of change or development that triggers a concrete result. Sense 3 is about strong feeling; sense 4 is about factual cause and effect.

5. used in comparisons to say that two things are equal in degree, amount, or how s

5.名詞B2
釋義

used in comparisons to say that two things are equal in degree, amount, or how strongly they affect a situation.

例句

Minh's parents did not worry about her brother to the same extent as her.

Talia enjoyed the film, though not to the same extent as her friends did.

not to the same extent as

同義詞
  • as much as

    less formal; more common in spoken English

  • equally

    adverb; used in different sentence positions

反義詞

文法句型

to the same extent as

not to the same extent

用法筆記

Often occurs in negative or contrastive structures ('not to the same extent'). Can appear as 'to the same extent that' + clause. More formal than 'as much as'.

常見錯誤

I like reading to the same extent like watching movies.
I like reading to the same extent as watching movies.
💡Use 'as', not 'like', after 'to the same extent'.

6. used to show that something is partly true but not completely; a way of limiting

6.名詞B1
釋義

used to show that something is partly true but not completely; a way of limiting or lowering the strength of a statement.

例句

Iker agreed with the proposal, at least to some extent.

to some extent — limiting agreement

To a certain extent, the success of the project depends on how well the team communicates.

同義詞
反義詞

文法句型

to some extent

to a certain extent

to a large extent

to a limited extent

用法筆記

Common in academic and professional writing to qualify claims. 'To a large extent' means 'mostly', 'to a limited extent' means 'not very much'. 'To some extent' and 'to a certain extent' are largely interchangeable.

常見錯誤

To some extend, I agree.
To some extent, I agree.
💡'extent', not 'extend'. The phrase uses the noun form.

7. used to emphasise that something happens to a very great degree, often with a no

7.名詞B2
釋義

used to emphasise that something happens to a very great degree, often with a noticeable result.

例句

The noise from the site increased to such an extent that nearby residents could not sleep.

to such an extent that + result

Antonia's reputation grew to such an extent that she was invited to speak at conferences worldwide.

同義詞

文法句型

to such an extent that

用法筆記

Stronger and more emphatic than 'to the extent that' (sense 4). Often used in formal writing or speech to highlight dramatic results. Compare with 'so...that' constructions.

常見錯誤

His phone rang to such an extent that it annoyed me.' (too trivial for this dramatic phrase).
The crisis deepened to such an extent that the government had to intervene.
💡Reserve for serious or significant situations.

8. used in questions to ask about how much something is true, how far it reaches, o

8.名詞B1
釋義

used in questions to ask about how much something is true, how far it reaches, or how strongly it applies.

例句

To what extent does social media influence young people's buying choices?

To what extent + question — asking about degree

Ada wondered to what extent her childhood memories matched the reality of those years.

同義詞
  • how much

    less formal; more common in everyday conversation

  • how far

    focuses on limits or boundaries

  • in what way

    focuses on manner rather than degree

文法句型

to what extent + clause

用法筆記

Common in academic writing, surveys, and formal discussion. More precise than 'how much'. Used both as a direct question (sense 8) and as an indirect question embedded in a statement (see example 2).

常見錯誤

To which extent does this matter?
To what extent does this matter?
💡Use 'what', not 'which', in this fixed phrase.