Definition: Meaning of, Cheshire cat, the in English to English dictionary.
Pronunciation:/ ˈtʃɛʃ(ɪ)ə kat ðə;ðɪ;ðiː /
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a character in Alice's Adventures in Wonderland by Lewis CARROLL, which disappears very slowly until only its big smile is left. People sometimes say someone is "grinning like a Cheshire cat" to mean that they have a big and rather silly smile on their face.