- synthetic rutile, TiO2, used as a gem.
- (in Shakespeare's Midsummer Night's Dream) the wife of Oberon and the queen of fairyland.
- one of the moons of Uranus.
- another name for titanium dioxide
- (in medieval folklore) the queen of the fairies and wife of Oberon
- (in classical antiquity) a poetic epithet used variously to characterize Circe, Diana, Latona, or Pyrrha
- the largest of the satellites of Uranus and the second furthest from the planet
