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:
Language
Close-mid front rounded vowel (IPA: ) Zero (linguistics) (∅) Berber Academy yah (ⵁ), a Tifinagh letter, corresponding to "h"
Science, technology and engineering Slashed zero (), a representation of the digit 0 (zero) to distinguish it from the letter O Slashed letter 'O' (O̸), a representation of the letter O to distinguish it from the digit 0 (zero) Diameter (⌀), U+2300 in Unicode The symbol to represent a phenyl group Empty set ( or as a character) in mathematical set theory, U+2205 in Unicode
Other uses Ø, Denmark, a piece of land in Jutland, Denmark Half-diminished seventh chord (), in music Ø, the solo identity of Finnish musician Mika Vainio of electronic music band Pan Sonic Ø, the 2021 EP by British alt-rock band Blood Red Shoes
Similar symbols Circle with a diagonal slash Circled division slash (⊘), U+2298 in Unicode No symbol, a similar symbol used to mark "no" or opposition to something The logo for Grok AI
Circle crossed by a vertical bar Voiceless bilabial fricative (IPA: ɸ) Phi (Φ and φ), a Greek letter, corresponding to "f" or "ph" Several uses of phi as a symbol for angles, etc. Ef (Cyrillic) (Ф and ф), a Cyrillic letter, corresponding to "f" or "ph"
Circle with a vertical bar
Yah (ⵀ), a Tifinagh letter, corresponding to "h" or "b"
Circle with a horizontal bar Voiceless dental fricative (IPA: θ) Theta (Θ and θ), a Greek letter, corresponding to "th" Theta nigrum (ꝋ) for "obiit" ="died" 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 Yab (ⴱ), a Tifinagh letter, corresponding to "b" Load line mark, showing the maximum draft of a ship Standard state, in chemistry
APL syntax and symbols ⍉ ⊖ (disambiguation) ⌽
See also Circle symbol (disambiguation) Null (disambiguation) Null symbol (disambiguation) Barred O (disambiguation) 0 (disambiguation)