笑うの

laughing

→ 笑う

phrase Uncommon #8,913

laughing の turns 笑う (to laugh) into “laughing” or “to laugh.” In casual speech, の can also appear at the end of a question for emphasis or explanation.

JA: 人を笑うのはよくないよ。

EN: It’s not good to laugh at people.

なぜ笑うの？

Why are you laughing?

— バジュランギおじさんと、小さな迷子 (2015)

何で笑うの？

What are you laughing at?

— ANORA アノーラ (2024)

笑うの？

Are you laughing?

— ムーンライズ・キングダム (2012)

なんで笑うの？

Why are you laughing?

— 紅夢 (1991)

そうあり得ないほど入ってくるたび笑うの

Yeah, I laugh every time you come in—it's just so unbelievable.

— Good Luck, Have Fun, Don't Die (2026)

どうして笑うの？

Why are you laughing?

なぜそんなに笑うの？

Why are you laughing so much?

— 海の上のピアニスト (1998)