Flak jacket
Sheath and flak jacket are semantically related. In some cases you can use "Sheath" instead a noun phrase "Flak jacket".
Sheath
Sheath noun - Something that encloses another thing especially to protect it.
Show all Definitions
Synonyms for Sheath
Mutual synonyms
Cite this Source
Sheath and Flak jacket. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/flak_jacket/sheath
Flak jacket & Sheath. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/flak_jacket/sheath>.
Sheath or Flak jacket. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/flak_jacket/sheath.
Google Ngram Viewer shows how "flak jacket" and "sheath" have occurred on timeline