2

2

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 an unit.

   m² stands for square meter.

• CJK tally marks: 丅

• 2nd

• 2 (number) in Wikipedia

Other representations of 2:

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

• (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

• A2C
• B2B
• B2C
• C2C
• O2O
• P2P

2 (not comparable)

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

   Can I come 2?

• 4
• 8

2

1. (text messaging) Alternative form of de

• “2” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).