Question 1

What does "lighten up" mean?

Accepted Answer

To become less serious, worried, or tense; to relax and stop taking things so hard.

Question 2

How do you use "lighten up" in a sentence?

Accepted Answer

Come on, lighten up — it's just a game, not the end of the world.

Question 3

Is "lighten up" formal or informal?

Accepted Answer

"lighten up" is informal — used mainly in casual conversation. Often used as a direct command: 'Lighten up!' Can sound dismissive if used carelessly. Widely used in American English. Also used literally to mean making something physically less heavy or making a colour lighter.

lighten up

"up" を含むフレーズ