Envelope
Envelope noun - A flat (usually rectangular) container for a letter, thin package, etc..
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Synonyms for Envelope
File and envelope are semantically related. In some cases you can use "File" instead a noun "Envelope".
File
File noun - A series of persons or things arranged one behind another.
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Cite this Source
File and Envelope. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/envelope/file
Envelope & File. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/envelope/file>.
File or Envelope. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/envelope/file.
Google Ngram Viewer shows how "envelope" and "file" have occurred on timeline