Clammed up
Close and clammed up are semantically related. in quiet topic. In some cases you can use "Close" instead the word "Clammed up" as an adjective or a verb, when it comes to topics like shy, silent, taciturn, uncommunicative.
Close
Close verb - To position (something) so as to prevent passage through an opening.
Clammed up and close are semantically related. You can use "Clammed up" instead the word "Close" as an adjective or a verb.
Cite this Source
Close and Clammed up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/clammed_up/close
Clammed up & Close. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/clammed_up/close>.
Close or Clammed up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/clammed_up/close.
Google Ngram Viewer shows how "clammed up" and "close" have occurred on timeline