A Clove

1. (uncountable, countable) A very pungent aromatic spice, the unexpanded flower bud of the clove tree.
2. (countable) A clove tree, of the species Syzygium aromaticum (syn. Caryophyllus aromaticus), native to the Moluccas (Indonesian islands), which produces the spice.
3. (countable) An old English measure of weight, containing 7 pounds (3.2 kg), i.e. half a stone.