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Translingual

A # used on a telephone keypad

Symbol

1. Template:Lb The hash character.
2. Template:Senseid Template:Lb A hashtag, which is a metadata tag for use in microblogging and social network services, used to label and search content.
3. Template:Lb Template:N-g
4. Template:Lb Template:N-g

   Template:Syn

5. Template:Lb Template:N-g

   Template:Uxi

6. Template:Lb Template:N-g

   $1\mathrm{\#}2=12$

7. Template:Lb Apartness, a binary relation such that if a#b, then any other element c is apart from at least one of a,b. See Template:W.
8. Template:Lb Primorial.

   Template:Cot

   $12\mathrm{\#}=2\times 3\times 5\times 7\times 11=2310$

9. Template:Lb The cardinality of a set.

   $\mathrm{\#}\{5,3,7,11\}=4$

   Template:Syn

10. Template:Lb Template:N-g

    Template:Ux

    Template:Ux

    Template:Ux

11. Template:Lb Template:N-g

    Template:Uxi

12. Template:Lb Template:N-g
13. Template:Lb Template:N-g

    Template:Cot

14. Template:Alt form of.
15. Template:Alt form of.
16. Template:Lb Template:Alt form.

English

Etymology

Derived from the abbreviation Template:M for Template:Der, via the medieval convention of indicating abbreviations with a bar, Template:M.

Noun

1. Template:Lb Pound (unit of weight).

   Template:Uxi

2. Template:Lb Number.

   Template:Syn

   Template:Uxi

3. Template:Lb Number.
   • Template:Quote-journal
   • Template:Quote-newsgroup
4. Template:Lb Template:N-g

   Template:Co

Related terms

• Template:L

Further reading

• Template:Pedia

Chinese

Alternative forms

• Template:Q ^#

Noun

1. Template:Lb Template:Alt form, Template:N-g