Flack and Knock

Flack

Flack noun - Artillery designed to shoot upward at airplanes.

Knock and flack are semantically related. in complaint topic. In some cases you can use "Knock" instead a noun "Flack".

Knock

Knock noun - A hard strike with a part of the body or an instrument.

Flack and knock are semantically related. Sometimes you can use "Flack" instead a noun "Knock".

Mutual synonyms

Cite this Source
Knock and Flack. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/flack/knock
Flack & Knock. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/flack/knock>.
Knock or Flack. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/flack/knock.
Google Ngram Viewer shows how "flack" and "knock" have occurred on timeline