Clam up
Clam up verb - To stop talking.
Closed up
Mutual synonyms
Cite this Source
Closed up and Clam up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/clam_up/closed_up
Clam up & Closed up. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/clam_up/closed_up>.
Closed up or Clam up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/clam_up/closed_up.
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