Clam up
Clam up verb - To stop talking.
Suffocate
Suffocate verb - To be or cause to be killed by lack of breathable air.
Clam up and suffocate are semantically related. Sometimes you can use "Clam up" instead a verb "Suffocate".
Nearby Words: suffocating, suffocation
Mutual synonyms
Cite this Source
Suffocate and Clam up. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/clam_up/suffocate
Clam up & Suffocate. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/clam_up/suffocate>.
Suffocate or Clam up. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/clam_up/suffocate.
Google Ngram Viewer shows how "clam up" and "suffocate" have occurred on timeline