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Hash-transbg.svg
# U+0023, #
NUMBER SIGN
"
[U+0022]
Basic Latin $
[U+0024]
U+FE5F, ﹟
SMALL NUMBER SIGN

[U+FE5E]
Small Form Variants
[U+FE60]
U+FF03, #
FULLWIDTH NUMBER SIGN

[U+FF02]
Halfwidth and Fullwidth Forms
[U+FF04]

Contents

TranslingualEdit

SymbolEdit

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

  1. (cartography) Used to denote a village.
  2. (chess notation) Checkmate.
  3. (computing) The hash character.
  4. (medicine) A fracture.
  5. (Internet) A hashtag, which is a metadata tag for use in microblogging and social network services, used to label and search content.
  6. (Usenet) Used to pad the left side of a quotation from a manual or official source.
  7. (mathematics, computer science) Concatenation.
  8. (set theory) The cardinality of a set.
    #{ 5, 3, 7, 11 } = 4
  9. (phonology) Used to indicate a word boundary.
  10. (syntax) Used to indicate that a sentence is grammatical but semantically strange.
  11. Alternative form of

Usage notesEdit

In English it is called the hash, number sign, pound sign (American), or octothorpe (uncommon).

SynonymsEdit

Coordinate termsEdit

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

Derived termsEdit


EnglishEdit

EtymologyEdit

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

NounEdit

# (plural # or #s)

  1. (food packaging, US) Pound (unit of weight).
    3# — "three pounds"
  2. (followed by a numeral: used attributively) Number.
    #3 — "number three"
  3. (Internet slang, text messaging) Number.
    • 1997 June 17, RYankowski [username], “Why collect new U.S.?”, in rec.collecting.stamps, Usenet[1]:
      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.
  4. (linguistics) Denotes a word or morpheme boundary.

SynonymsEdit

Related termsEdit

See alsoEdit


ChineseEdit

Alternative formsEdit

  • (superscript) #

Glyph originEdit

Likely from English.

PronunciationEdit


NounEdit

#

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