hash mark

noun

The hash or pound sign (#).

Similar
service stripehashmark
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Meanings

nounhash mark (plural hash marks)

plural hash marks · alternative hashmark

  1. The hash or pound sign (#).
  2. American footballAn inbounds line.
  3. hobbiesEither of the parallel lines on either side of the face-off circles.
  4. A service stripe, as on an enlistee’s uniform sleeve.

Synonyms & antonyms

nounan insignia worn to indicate years of service

Similar
service stripehashmark
Broader
insignia

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

hash mark. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/hash%20mark

MLA

“hash mark.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hash%20mark. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “hash mark,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/hash%20mark.

Source: hash mark on Wiktionary, CC BY-SA 4.0.