junk

Concise Oxford English Dictionary © 2008 Oxford University Press:
junk1

▶noun

• 1 informal useless or worthless articles.

  ■ nonsense.

• 2 informal heroin.

• 3 the lump of oily fibrous tissue in a sperm whale's head, containing spermaceti.

▶verb informal discard unceremoniously.

– origin ME (denoting an old or inferior rope): of unknown origin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
junk2

▶noun a flat-bottomed sailing vessel with a prominent stem, used in China and the East Indies.

– origin C16: from obs. Fr. juncque or Port. junco, from Malay jong, reinforced by Du. jonk.