Translingual[edit]
# (English symbol name number sign or hash or pound sign or octothorpe)
- (cartography) Used to denote a village.
- (chess notation) Checkmate.
- (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.
- (Usenet) Used to pad the left side of a quotation from a manual or official source.
- (mathematics, computer science) Concatenation.
- (set theory) The cardinality of a set.
- #{ 5, 3, 7, 11 } = 4
- (phonology) Used to indicate a word boundary.
- (syntax) Used to indicate that a sentence is grammatical but semantically strange.
- Alternative form of ‡
Usage notes[edit]
In English it is called the hash, number sign, pound sign (American), or octothorpe (uncommon).
Synonyms[edit]
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, ℔.
# (plural # or #s)
- (food packaging, US) Pound (unit of weight)
- 3# — "three pounds"
- (followed by a numeral: used attributively) Number
- #3 — "number three"
- (linguistics) denotes a word or morpheme boundary
Synonyms[edit]
Related terms[edit]
See also[edit]