2

2 (prev 1, next 3)

1. The cardinal number two.
2. A digit in the decimal system of numbering, as well as octal, and hexadecimal.
3. A rotational symmetry element in the Hermann-Mauguin notation, indicating a rotation over π (twofold axis).
4. (mathematics) The two-element Boolean algebra, two-point discrete space or a (canonical) two-element set.
5. (superscript) The square of a number or a unit.

   m² stands for square meter.

   n² is usually pronounced as "n squared".

6. (phonetics) the pitch of a tone, whose value depends on local convention (e.g. nearly as high or as low as 1, if four or more numbers are used; mid pitch if the numbers 1–3 are used; or contrasting with 1 if only '1' and '2' are used)

   Synonyms: ˥, ˦, ˧, ˨, ˩, depending on other values

7. (phonetics, Sinosphere) tone number 2, typically identified with light level yang ping (陽平). May be identified with rising shang tone (上) if the yin–yang distinction is not made.

   Synonyms: ꜁, ꜂

The following forms are equivalent as a decimal digit:

The following additional forms are equivalent as a cardinal number:

• 2nd

• 2 (number) in Wikipedia
• (Arabic digits): 0 1 2 3 4 5 6 7 8 9

Other representations of 2:

• (too, two): IPA^(key): /tuː/
• (to): IPA^(key): /tuː/ (stressed), IPA^(key): /tə/, /tʊ/ (unstressed)

• Audio (US)

  (file)

• Homophones: to, too, two
• Rhymes: -uː

2

1. (text messaging, informal) Abbreviation of to.

   I have 2 go now. / Send files 2 him.

2. (computing) Abbreviation of to; designating conversion from one format to another

   pdf2txt, i.e. conversion from PDF to plain text

• 4
• 8

2 (not comparable)

1. (text messaging, informal, eye dialect) Abbreviation of too.

   Can I come 2?

2 (comparative more 2, superlative most 2)

1. Alternative form of 2S; Abbreviation of two-spirited.

2 (plural 2s)

1. Alternative form of 2S; Abbreviation of two-spirit.

• IPA^(key): /dø/

• Audio

  (file)

2

1. (text messaging) Alternative form of de

• “2”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

• ²

2

1. (dated or informal) An iteration mark used as an abbreviation for the second part of a reduplicated compound word.

• ²

2

1. An iteration mark used as an abbreviation for the second part of a reduplicated compound word.

• ²

2

1. An iteration mark used as an abbreviation for the second part of a reduplicated compound word.