rev up

回転数を上げる、空ぶかしする

エンジンの回転数を上げること、または回転数が上がること。

やさしい英語で： To make an engine run faster, or for an engine to run faster.

• The driver revved up the engine.
• The motor revved up with a loud roar.
• Stop revving your car up outside my window.

使い方： rev something up (He revved the engine up before moving off.)

類義語： rev, accelerate

反対語： slow down

よく使う表現： rev up engines, rev up loudly

活気づける、盛り上げる

人や活動をもっと元気にしたり活発にしたりすること。

やさしい英語で： To make someone or something more energetic or active.

• This music revs me up.
• The speech revved up the crowd.
• They hope the festival will rev up local business.

使い方： rev someone/something up (The coach revved the players up before the match.)

類義語： energize, stimulate, boost

反対語： calm down

よく使う表現： rev up someone, rev up sales

活発になる、勢いを増す

活動が盛んになったり、速さや勢いが増したりすること。

やさしい英語で： To become busier, faster, or more energetic.

• Business is revving up again.
• The campaign revved up as election day approached.
• We expect activity to rev up during the summer.

類義語： pick up, accelerate

反対語： slow down

よく使う表現： rev up again, rev up quickly