Definition of clam up
: to become silent
- clammed up and refused to talk
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Examples of clam up in a Sentence
the little girl clammed up when the doctor came into the room
First Known Use of clam up
1916
clam up Synonyms
Synonyms
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Phrases
hold one's tongue (or hold one's peace);
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See words that rhyme with clam up Thesaurus: All synonyms and antonyms for clam up Spanish Central: Translation of clam up Nglish: Translation of clam up for Spanish speakers Britannica English: Translation of clam up for Arabic speakers
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