Ø (disambiguation)
- 0 (disambiguation)
- Barred O (disambiguation)
- Blood Red Shoes
- Circle symbol (disambiguation)
- Close-mid front rounded vowel
- Diameter
- Ef (Cyrillic)
- Fita
- Grok AI
- Half-diminished seventh chord
- Load line mark
- Mathematical Operators (Unicode block)
- Mika Vainio
- No symbol
- Null (disambiguation)
- Null symbol (disambiguation)
- Oe (Cyrillic)
- Phi
- Phi
- Slash (punctuation)
- Slashed letter 'O'
- Slashed zero
- Standard state
- Theta
- Theta nigrum
- Tifinagh
- Voiceless bilabial fricative
- Voiceless dental fricative
- Zero (linguistics)
- Ø
- Ø, Denmark