increase

増える、増加する

大きさや量、数が前より大きくなる。

やさしい英語で： To become bigger in size, amount, or number.

• Prices increased last month.
• The population is increasing rapidly.
• Will demand increase next year?

使い方： increase by something (Sales increased by ten percent.); increase from A to B (The number increased from twenty to thirty.); increase in something (The city increased in size.)

類義語： rise, grow

反対語： decrease, fall

よく使う表現： increase rapidly, increase by something, increase in size

増やす、増加させる

物の大きさや量、数を前より大きくする。

やさしい英語で： To make something bigger in size, amount, or number.

• They increased my pay.
• Turn this knob to increase the speed.
• Can we increase production without hiring more staff?

使い方： increase something by something (They increased the price by two euros.); increase something to something (We increased the group size to twelve.)

類義語： raise, enlarge, boost

反対語： decrease, reduce

よく使う表現： increase prices, increase the speed, increase production, increase something gradually

満ちる

満月に近づくにつれて、月の明るく見える部分が大きくなる。

やさしい英語で： For the moon, to show a larger bright area as it moves towards being full.

• The moon increases each night.
• We watched the moon increase towards fullness.
• As the moon increased, the nights grew brighter.

類義語： wax

反対語： wane

よく使う表現： moon will increase, moon begins to increase

増加分、増額

物が大きくなったり増えたりしたときに加わった分。

やさしい英語で： The extra amount by which something becomes bigger or greater.

• I received a small pay increase.
• The increase was fifty euros.
• They announced a price increase of ten percent.

使い方： an increase of something (We recorded an increase of twenty students.); an increase in something (There was a large increase in rent.)

類義語： rise, gain

反対語： decrease, reduction

よく使う表現： pay increase, price increase, increase of something

増加、増大

大きさや量、数が増えていくこと。

やさしい英語で： The process of growing in size, amount, or number.

• The increase in demand continues.
• We noticed a steady increase in traffic.
• A rapid increase in population puts pressure on housing.

使い方： an increase in something (An increase in spending helped the economy.)

類義語： growth, rise

反対語： decrease, decline

よく使う表現： increase in demand, steady increase, rapid increase