Unsupported titles/`num`

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also #
# U+0023, #
Basic Latin $
U+FE5F, ﹟

Small Form Variants
U+FF03, #

Halfwidth and Fullwidth Forms

Translingual edit

A # used on a telephone keypad

Symbol edit

# (English symbol name number sign or hash or pound sign or octothorpe)

  1. (computing) The hash character.
  2. (Internet) A hashtag, which is a metadata tag for use in microblogging and social network services, used to label and search content.
  3. (chess notation) Checkmate.
    Synonym: ++
  4. (medicine) A fracture.
  5. (cartography) Used to denote a village.
  6. (Usenet) Used to pad the left side of a quotation from a manual or official source.
  7. (set theory) The cardinality of a set.
    Synonyms: card, | |
  8. (mathematics, computer science) Concatenation.
  9. (mathematics) Apartness, a binary relation such that if a#b, then any other element c is apart from at least one of a,b. See apartness relation.
  10. (phonology) Used to indicate a word boundary.
  11. (linguistics) Used to indicate that a sentence is grammatical but semantically strange.
    #Jane is a great hostess and John is too.
    #I slept a wink last night.
  12. Alternative form of .
  13. Alternative form of (key available on telephone keypads).
  14. (music) Alternative form of (sharp).

Coordinate terms edit

  • (to pad a quotation on Usenet): > (for a quotation not necessarily from a manual or official source)

Derived terms edit

English edit

Etymology edit

The symbol # derives from the abbreviation lb for Latin libra (pound), via the medieval convention of indicating abbreviations with a bar, .

Noun edit

# (plural # or #s)

  1. (food packaging, US) Pound (unit of weight).
    3# — "three pounds"
  2. (attributive, precedes a numeral, chiefly Canada, US) Number.
    #3 — "number three"
    Synonym: no.
  3. (Internet slang, text messaging) Number.
    • 1997 June 17, RYankowski [username], “Why collect new U.S.?”, in rec.collecting.stamps[1] (Usenet):
      I have collected U.S. Stamps since I was a boy back in the 1950's. At that time there was a low # being printed and it was affordable.

Related terms edit

See also edit

Chinese edit

Alternative forms edit

  • (superscript) #

Glyph origin edit

Likely from English.

Pronunciation edit

Noun edit


  1. (Mainland China) Alternative form of (number), used after a numeral.