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laugh at someone or something
to chuckle or giggle loudly at someone or something, perhaps in ridicule. Thank goodness, the audience laughed at all my jokes. Don't laugh at me! I'm doing my best! Everyone laughed at the love scene because it was so badly done.
laugh at somebody
to ridicule someone A lot of kids laughed at me because of the way I dressed, but it never bothered me.
laugh at something
to show you think something is ridiculous Cynthia laughs at the suggestion she's doing this job for the money.
Treat lightly, scoff at. For example, He said the other children all laughed at his jacket, or They stopped laughing at his theory when it proved to be correct. [Late 1300s]
1. To laugh in response to something intended to be humorous: I always laugh at that TV show.
2. To mock or make fun of someone or something: They laughed at me when I said I wanted to become an astronaut.
3. To treat someone or something lightly; scoff at someone or something: That daredevil laughs at danger.