Clammed up
Retain and clammed up are semantically related. in keep back topic. In some cases you can use "Retain" instead a verb "Clammed up".
Retain
Retain verb - To continue to have in one's possession or power.
Clammed up and retain are semantically related. Sometimes you can replace term "Clammed up" with "Retain", this verbs are similar.
Cite this Source
Retain and Clammed up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/clammed_up/retain
Clammed up & Retain. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/clammed_up/retain>.
Retain or Clammed up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/clammed_up/retain.
Google Ngram Viewer shows how "clammed up" and "retain" have occurred on timeline