A kind of cast-iron padlock. / Used other than figuratively or idiomatically: see jail, lock.

A thick padded cover for a water heater used to keep heat in.

(slang) a mess jacket

(law, abbreviation) Abbreviation of Justice of the Peace, usually used after the name of a person who holds this office.

A short woollen overcoat, originally as worn by sailors; a pea coat.

(fandom slang) The faction of Twilight fandom which prefers Bella Swan in a romantic relationship with Jacob Black.

Alternative spelling of jibber-jabber

A kind of knitted jacket for women.

Alternative spelling of jailbait

A loose, belted, single-breasted jacket with box pleats on the back and front.