Any alloy of titanium and a metal or nonmetal

An urban feral cat. / (figuratively, humorous) A slut, a sexually promiscuous woman or prostitute.

plural of alley cat

A coalition among seemingly antagonistic groups, especially if one is religious, for ad hoc or hidden gain. (See examples.)

An alloy containing three metals or other elements

(uncountable, originally) A system of alternative medicine that treats symptoms with substances that produce the opposite effect. / (countable) A conventional Western medical method or treatment.

(historical) A coalition of Russia, Austria and Prussia formed in 1815, ostensibly to regulate all national and international relations in accordance with the principles of Christian charity.

(colloquial) the mineral aluminite.

A person who alleges, especially one who makes a formal allegation.

A back alley