Ø (disambiguation)

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Ø (and ø) is a Scandinavian vowel letter.

The letter Ø or the symbol (a circle crossed by a diagonal slash) etc. may also refer to:


Science, technology and engineering[edit]

  • Slashed zero (0̸), a representation of the number 0 (zero) to distinguish it from the letter O
  • The symbol for diameter (⌀)
  • Empty set (), in mathematical set theory

Other uses[edit]

Similar symbols[edit]

Circle crossed by a vertical bar[edit]

Circle with a horizontal bar[edit]

  • Unvoiced dental fricative (IPA: θ)
  • Theta (Θ and θ), a Greek letter, corresponding to "th"
  • Fita (Ѳ and ѳ), an Old Cyrillic letter, corresponding to "f" and transliterating Greek theta
  • Oe (Cyrillic) (Ө and ө), Cyrillic barred O, representing an open-mid front rounded vowel in some Turkic and Mongolic languages
  • Plimsoll line (o), the line where the hull of a ship meets the surface of the water
  • Standard state (o), in chemistry

See also[edit]