WordReference Random House Unabridged Dictionary of American English © 2026
hash′ mark′, 
    1. Informal Terms
      • a service stripe.
      • the symbol #.
    2. Sport[Football.]the marking formed by either inbounds line intersecting with one of the lines delineating yardage between the goal lines.
    • 1905–10

'hash mark' also found in these entries (note: many are not synonyms or translations):
hashtag - number sign - pound sign - space mark

Forum discussions with the word(s) "hash mark" in the title:


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