(dated) two

(rare) twofold

pair, couple

(transitive) To part in twain; divide; sunder.

(archaic) In two, in halves, into two parts, asunder

(computing) A standard software protocol and applications programming interface (API) that regulates communication between software applications and imaging devices such as scanners and digital cameras.

A surname. / A census-designated place in Plumas County, California, United States.

present participle of twain

simple past tense and past participle of twain

Third-person singular simple present indicative form of twain