効率(こうりつ)

こうりつ
noun
efficiency
1. efficiency
The ratio of useful output to total input; how effectively time, resources, or effort are used to produce results.
仕事(しごと)の効率(こうりつ)を上(あ)げたい。
I want to improve my work efficiency.
この方法(ほうほう)は効率(こうりつ)が悪(わる)いので変(か)えよう。
This method is inefficient, so let's change it.
AIを導入(どうにゅう)したことで、業務(ぎょうむ)の効率(こうりつ)が大幅(おおはば)に改善(かいぜん)された。
By introducing AI, work efficiency was significantly improved.

Very frequently used in business and daily life. The na-adjective form 効率的(こうりつてき) (efficient) is also extremely common.

COMMON COLLOCATIONS:

  • 効率(こうりつ)が良(よ)い／悪(わる)い: efficient / inefficient
  • 効率(こうりつ)を上(あ)げる: to improve efficiency
  • 効率的(こうりつてき)な: efficient (adj.)
  • 燃費(ねんぴ)効率(こうりつ): fuel efficiency
general
Added 2026.2.18 15:08
11500/11794_kouritsu