Clam up
Clam up verb - To stop talking.
Usage example: the little girl clammed up when the doctor came into the room
Mutual synonyms
Cite this Source
Settle and Clam up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/clam_up/settle
Clam up & Settle. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/clam_up/settle>.
Settle or Clam up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/clam_up/settle.
Google Ngram Viewer shows how "clam up" and "settle" have occurred on timeline