\Ketch\ (k[e^]ch), n. [Prob. corrupted fr. Turk. q[=a][imac]q : cf. F. caiche. Cf. {Ca["i]que}.] (Naut.) An almost obsolete form of vessel, with a mainmast and a mizzenmast, -- usually from one hundred to two hundred and fifty tons burden. {Bomb ketch}. See under {Bomb}.
\Ketch\, n. A hangman. See {Jack Ketch}.
\Ketch\, v. t. [See {Catch}.] To catch. [Now obs. in spelling, and colloq. in pronunciation.] To ketch him at a vantage in his snares. --Spenser.