expand
gb/ɪkspˈænd/ us/ɪkspˈænd/
B1
英語
~ 2100
語義
0件の語義
動詞
B1
action
1
Increase size or amount
To make something bigger or more; to grow in size or amount.
用法パターン：
to expand [something]
よくある間違い：
Learners sometimes confuse 'expand' with 'extend'; 'extend' usually means to make something longer in time or space, while 'expand' means to make it bigger in size or scope.
類義語
enlarge (Focuses more on physical size rather than quantity or scope.)
対義語
shrink (Means to become smaller in size, amount, or extent.)
コロケーション
expand a business
|expand operations
|expand the range
|expand rapidly
|expand capacity
テーマ
business
|science
|daily life
|core_vocabulary
例文
- The company plans to expand its operations into Asia.
- They decided to expand the kitchen to make more room.
- The government is working to expand access to healthcare.
学習者向け例文
- We want to expand our shop.
- He will expand the garden next year.
- The school will expand the library.
動詞
B1
action
2
Become larger or greater
To get bigger in size, number, or amount.
用法パターン：
[something] expands
よくある間違い：
Learners may confuse this with 'explode'; 'expand' is gradual increase, not a sudden burst.
類義語
grow (A broader term that can refer to physical, abstract, or metaphorical increase.)
対義語
contract (Means to become smaller or tighter.)
コロケーション
gas expands
|metal expands
|population expands
テーマ
science
|daily life
|core_vocabulary
例文
- Hot air expands as it rises.
- The city's population has expanded rapidly in recent years.
- The metal will expand when heated.
学習者向け例文
- Hot water expands when it gets hot.
- My town is expanding quickly.
- The balloon expands when you blow air into it.
動詞
B2
action
3
Add detail or explanation
To say or write more about something so it is clearer or more complete.
用法パターン：
to expand on [something]
よくある間違い：
Learners sometimes use 'explain' instead; 'expand' emphasizes adding more detail to what was already said.
類義語
elaborate (Often used in formal contexts; may imply careful explanation.)
対義語
summarize (Means to present only the main points without extra detail.)
コロケーション
expand on a point
|expand on an idea
|expand further
テーマ
communication
|education
|core_vocabulary
例文
- Could you expand on what you mean by that?
- She expanded on her earlier remarks during the meeting.
- The author expands on this theme in later chapters.
学習者向け例文
- Please expand on your answer.
- He expanded on his story with more details.
- She expanded on her plan for the trip.
文法
辞書形
expand
IPA
GB/ɪkspˈænd/
US/ɪkspˈænd/
音節・強勢
ex - pand （2音節）
Stress on 2nd syllable (pand)
活用形
Verb
- Base: expand
- 3rd Person Singular: expands
- Present Participle: expanding
- Past: expanded
関連語
Forms
expands
verb
expanding
verb
expanded
verb
Core family
expansion
noun B1
expandable
adjective
Related words
expanse
noun B2
expansive
adjective
Negative and opposite forms
contract
verb B1
contraction
noun B1
表現
expand into
1/ɪkspˈænd ˈɪntu/
phrasal verb
Start operating in a new area
To start working in a new place or doing new kinds of work.
例文
- The company plans to expand into South America next year.
- They are expanding into the online market.
expand on
1/ɪkspˈænd ˈɔn/
phrasal verb
Give more detail about something
To talk or write more about something by adding more information.
例文
- The teacher asked him to expand on his answer.
- Can you expand on your reasons for leaving?
expand upon
1/ɪkspˈænd əpˈɑn/
phrasal verb
formal
Give more detail about something (formal)
To talk or write more about something by adding extra details (formal).
例文
- The report expands upon last year's findings.
- She expanded upon her earlier comments during the conference.