Definition of junk

• n. - A fragment of any solid substance; a thick piece. See Chunk.
• n. - Pieces of old cable or old cordage, used for making gaskets, mats, swabs, etc., and when picked to pieces, forming oakum for filling the seams of ships.
• n. - Old iron, or other metal, glass, paper, etc., bought and sold by junk dealers.
• n. - Hard salted beef supplied to ships.
• n. - A large vessel, without keel or prominent stem, and with huge masts in one piece, used by the Chinese, Japanese, Siamese, Malays, etc., in navigating their waters.