increase

increase — verb

1. to go up in number, amount, size, or level; or to make something go up in these

1.動詞及物 / 不及物A2
釋義

to go up in number, amount, size, or level; or to make something go up in these ways

例句

Sales increased by 15 percent after the company launched its new website.

increase + by + percentage for numerical change

The Watanabe family increased their monthly savings from ¥30,000 to ¥50,000.

同義詞
  • rise

    similar meaning but only intransitive; prices rise, but you cannot 'rise something'

  • grow

    suggests gradual, organic increase over time; often used with populations, plants, or economies

  • boost

    more informal, implies a quick or deliberate push upward (e.g. 'boost sales', 'boost morale')

  • expand

    focuses on increase in area, volume, or range rather than number

反義詞
  • decrease

    direct opposite; used for both transitive and intransitive meanings

  • reduce

    transitive only; someone deliberately makes something smaller or lower

  • fall

    intransitive; often used for prices, temperatures, or levels going down

文法句型

increase + noun phrase

something + increase(s)

increase + by + amount/percentage

increase + from + amount + to + amount

increase + in + noun

用法筆記

Both transitive (increase something) and intransitive (something increases) uses are common with the same meaning of becoming larger. The most frequent opposite is 'decrease' for amounts and 'reduce' when someone deliberately makes something smaller.

常見錯誤

❌The price increased with 5 dollars.
✅The price increased by 5 dollars.
💡Use 'by' (not 'with') before the amount or percentage of change.
❌The company increased the production this year.
✅The company increased production this year.
💡Do not use an article before mass nouns like 'production' when referring to the general concept.