inflate

/ɪnˈfleɪt/ (bre, ipa) · /ɪnˈfleɪt/ (ame, ipa) · /in-ˈflāt/ (ame, mw)

inflate — verb

  • inflatepresent simple I / you / we / they
  • inflateshe / she / it
  • inflatedpast simple
  • inflating-ing form

1. to push air or gas into a hollow object so that it grows bigger and feels firmer

1.動詞及物 / 不及物B1
釋義

to push air or gas into a hollow object so that it grows bigger and feels firmer, or to become bigger in this way because air or gas has been pushed in

例句

Soraya used a small pump to inflate the air mattress before her guests arrived.

transitive: inflate + object (mattress)

The tyres on Sumin's bicycle inflate through a valve on the wheel rim.

intransitive: tyres inflate through a valve

同義詞
  • pump up

    more informal; suggests using a pump, common for tyres and sports balls

  • blow up

    informal; can mean inflate with breath (balloons) or cause to explode

  • fill

    more general; does not specify that the filling causes expansion

反義詞
  • deflate

    to let the air or gas out of something

文法句型

inflate + noun phrase

inflate + noun phrase + with + air/gas

noun phrase + inflate (intransitive)

用法筆記

This sense can be used transitively (someone inflates something) or intransitively (something inflates by itself). The past participle 'inflated' is commonly used as an adjective, e.g. 'an inflated tyre'.

常見錯誤

I need to expand the balloons for the party.
I need to inflate the balloons for the party.
💡'expand' means to grow in general, while 'inflate' specifically means to fill with air or gas.

2. to describe or present something as being bigger, more valuable, or more signifi

2.動詞及物B2
釋義

to describe or present something as being bigger, more valuable, or more significant than the truth would justify

例句

The politician inflated the sales figures to make the project look more successful.

transitive: inflate + figures/numbers

Christopher felt the media was inflating the dangers of the new technology to attract viewers.

transitive: inflate + abstract noun (dangers, risks)

同義詞
  • exaggerate

    broader; can apply to any kind of overstatement, not just size or importance

  • overstate

    more formal; suggests going beyond the truth in a deliberate way

  • puff up

    informal; often used for someone's pride or ego

反義詞
  • downplay

    to make something seem less important than it really is

  • understate

    to describe something as smaller or less significant than it is

文法句型

inflate + noun phrase (figures, claims, importance)

inflate + possessive + noun phrase

用法筆記

Often used with nouns related to numbers, status, or claims (figures, achievements, ego, importance, risks). The object is almost always abstract — you do not inflate a physical object in this sense.

常見錯誤

The article inflated the facts' (when meaning 'the article contained wrong information').
The article inflated the importance of the facts, making them seem more dramatic than they were.
💡'inflate' suggests exaggeration of real things, not outright falsehood.

3. to make prices rise across an entire economy, or to rise in this way, typically

3.動詞及物 / 不及物B2
釋義

to make prices rise across an entire economy, or to rise in this way, typically because the amount of money available increases or the value of currency drops

例句

The central bank's decision to print more money inflated the cost of everyday goods.

transitive: inflate + the cost of [goods]

Housing prices in the area inflated rapidly after the new train station was built.

intransitive: prices inflate

同義詞
  • push up

    more informal; can refer to a general or specific price rise

  • drive up

    suggests a force causing prices to rise, common in economic writing

反義詞
  • deflate

    to cause prices to fall; opposite in economic contexts

文法句型

inflate + noun phrase (prices, costs)

noun phrase + inflate (intransitive: prices inflate)

用法筆記

This sense is primarily used in economic and financial contexts. It often appears in passive constructions ('prices were inflated by…') or with adverbs like 'sharply', 'rapidly', 'artificially'.

常見錯誤

The shop inflated the price of milk last week.
The shop raised the price of milk last week.
💡For a single shop raising a single price, use 'raise' or 'increase'. 'Inflate' implies a broader, economy-wide or market-wide rise.