The R.M.S. Titanic, an ocean liner, supposedly unsinkable, that sank on its maiden voyage on 15 April 1912 after colliding with an iceberg.

A venture that fails spectacularly, especially one perceived as overconfident.

(chemistry) a weak acid, either of two hydrated forms of titanium dioxide, H₂TiO₃ or H₄TiO₄; used as a mordant

(chemistry) any salt (or ester) of titanic acid

(idiomatic) To do something pointless or insignificant that will soon be overtaken by events, or that contributes nothing to the solution of a current problem.

(chemistry) a brilliant white powder, TiO₂, used as a pigment, and in sunblock, toothpaste and cosmetics

The pigment titanium dioxide.

From Shakespeare's play A Midsummer-Night's Dream, the queen of the fairies. / (astronomy): The largest satellite of the planet Uranus.

plural of titanate

(mineralogy) A mixed calcium and titanium neosilicate, CaTiSiO₅, once known as sphene.