junk

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Discarded material, such as glass, rags, paper, or metal, some of which may be reused in some form.
2. n. Informal Articles that are worn-out or fit to be discarded: broken furniture and other junk in the attic.
3. n. Informal Cheap or shoddy material.
4. n. Informal Something meaningless, fatuous, or unbelievable: nothing but junk in the annual report.
5. n. Slang Heroin.
6. n. Hard salt beef for consumption on board a ship.
7. v. To discard as useless or sell to be reused as parts; scrap.
8. adj. Cheap, shoddy, or worthless: junk jewelry.
9. adj. Having a superficial appeal or utility, but lacking substance: "the junk issues that have dominated this year's election” ( New Republic).
10. n. A Chinese flatbottom ship with a high poop and battened sails.

Century Dictionary and Cyclopedia

1. n. A rush; a reed.
2. n. Nautical, old or condemned cable and cordage cut into small pieces, used when untwisted for making points, gaskets, swabs, mats, etc., and picked into fibers to make oakum for calking seams.
3. n. Hence Worn-out and discarded material in general that may be turned to some use; especially, old rope, chain, iron, copper, parts of machinery, and bottles, gathered or bought up by tradesmen called junk-dealers; hence, rubbish- of any kind; odds and ends.
4. n. Salt beef or pork supplied to vessels for long voyages: so called from its resemblance in toughness to old ropes' ends.
5. n. The mass of blubbery and cellular tissue which fills the cavity of the head of the sperm-whale between the case and the white-horse, containing oil and spermaceti.
6. n. A thick piece; a. lump; a chunk.
7. n. A large sea-going sailing vessel used in the Chinese seas. It has a flat bottom, a square prow, and high full stern, from one to five heavy masts carrying lug-sails, sometimes made of matting, and a huge rudder, which at sea is lowered below the bottom. The name is also given to the larger-sized river-craft of China.

Wiktionary

1. n. nautical A Chinese sailing vessel.
2. n. Discarded or waste material; rubbish, trash.
3. n. A collection of miscellaneous items of little value.
4. n. slang Any narcotic drug, especially heroin.
5. n. slang Genitalia.
6. n. nautical Salt beef.
7. v. transitive To throw away.

GNU Webster's 1913

1. n. colloq. A fragment of any solid substance; a thick piece. See chunk.
2. 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.
3. n. Old iron, or other metal, glass, paper, etc., bought and sold by junk dealers.
4. n. Something worthless, or only worth its value as recyclable scrap.
5. n. (Naut.) Hard salted beef supplied to ships.
6. n. (Naut.) 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.

WordNet 3.0

1. n. any of various Chinese boats with a high poop and lugsails
2. n. the remains of something that has been destroyed or broken up
3. v. dispose of (something useless or old)