Meaning of the word "keep a straight face" in English

What does "keep a straight face" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

keep a straight face

US /kiːp ə streɪt feɪs/
UK /kiːp ə streɪt feɪs/
"keep a straight face" picture

Idiom

1.

to succeed in not laughing or smiling

Example:
It was hard to keep a straight face when he told that ridiculous joke.
She tried to keep a straight face, but a giggle escaped.
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