Clam up
Clam up verb - To stop talking.
Clammed up and clam up are semantically related In some cases you can use "Clammed up" instead a verb "Clam up".
Clammed up
Clam up and clammed up are semantically related in calm topic. Sometimes you can use "Clam up" instead a verb "Clammed up", if it concerns topics such as prevent, silence, keep back, keep silent.
Mutual synonyms
Related pairs
Cite this Source
Clammed up and Clam up. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/clam_up/clammed_up
Clam up & Clammed up. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/clam_up/clammed_up>.
Clammed up or Clam up. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/clam_up/clammed_up.
Google Ngram Viewer shows how "clam up" and "clammed up" have occurred on timeline