Flack
Flack noun - Artillery designed to shoot upward at airplanes.
Knock
Knock noun - A hard strike with a part of the body or an instrument.
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.
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