Unsupported titles/`num`

See also: ⋕, and Appendix:Variations of the number sign

Text style

Emoji style

#︎

#️

Text style is forced with ⟨︎⟩ and emoji style with ⟨️⟩.

also &num;

#	U+0023, # NUMBER SIGN

Character variations

﹟	U+FE5F, ﹟ SMALL NUMBER SIGN

＃	U+FF03, ＃ FULLWIDTH NUMBER SIGN

Translingual

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

(computing) The hash character.
(Internet) A hashtag, which is a metadata tag for use in microblogging and social network services, used to label and search content.
(cartography) Used to denote a village.
(chess notation) Used to denote checkmate.
Synonym: ++
(medicine, shorthand) Used to denote a bone fracture.
#NOF ― fractured neck of femur
(mathematics, computer science) Used to indicate string concatenation.
$1\#2=12$
(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.
(mathematics) Primorial.
Coordinate term: ! (“factorial”)

$12\#=2\times 3\times 5\times 7\times 11=2310$
(set theory) The cardinality of a set.
$\#\{5,3,7,11\}=4$

Synonyms: card, | |
(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.

#Colorless green ideas sleep furiously.
(phonology) Used to indicate a word boundary.
d → t / _# ― /d/ devoices to [t] before a word boundary
(sign language linguistics) Used to indicate a lexicalized sign.
(Usenet) Used to pad the left side of a quotation from a manual or official source.
Coordinate term: >
Alternative form of ‡.
Alternative form of ⌗ (“key available on telephone keypads”).
(music) Alternative form of ♯ (“sharp”).

Derived from the abbreviation lb for Latin libra (“pound”), via the medieval convention of indicating abbreviations with a bar, ℔.

# (plural # or #s)

(US, food packaging) Pound (unit of weight).
3# ― three pounds
(attributive, precedes a numeral) Number.
Synonym: no.

#3 ― number three
(Internet slang, text messaging) Number.
- 1986 December 14, Ben Robbins, “Operator Denies Request For Gay Phone #”, in Gay Community News, volume 14, number 22, page 2:
- 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.
(Scrabble) In English-language Scrabble, indicates that a word is only found in the British accepted word list and not the North American list.
PTERION#

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