kill time

暇をつぶす

待っている間に何かをして、待ち時間を短く感じられるようにする。

やさしい英語で： Do something while waiting so that the wait feels shorter.

• We played cards to kill time.
• She killed time browsing in a bookshop.
• How do you kill time at the airport?

使い方： kill time doing something (We killed time playing cards.); kill time until + clause (I killed time until the shop opened.)

類義語： pass the time, while away time

よく使う表現： kill time reading, kill time together, kill time outside

死滅時間

対象や生き物を死なせるまでに必要な時間。

やさしい英語で： The amount of time needed to cause the death of a target or living thing.

• The disinfectant has a short kill time.
• Researchers measured the kill time for each bacterial sample.
• A stronger weapon reduced the average kill time.

類義語： time to kill

よく使う表現： short kill time, average kill time, kill time measurement