Definition of "onion" in English

noun

1. A monocotyledonous plant (Allium cepa), allied to garlic, used as vegetable and spice.

2. The bulb of such a plant.

   • My eyes are stinging from the chopped onions.
   • dorrẹ̅, dōrī adj. & n. […] cook. glazed with a yellow substance; pome(s ~, sopes ~. […] 1381 Pegge Cook. Recipes p. 114: For to make Soupys dorry. Nym onyons […] Nym wyn […] toste wyte bred and do yt in dischis, and god Almande mylk.

3. Any of various plants, mostly of the genus Allium, that are more or less similar to Allium cepa.

   • Many onions are delicious; domesticated onions such as Allium cepa and Allium fistulosum are especially good, but even wild onions such as Allium canadense and Allium validum are nice in small doses.

4. (slang) Of a drug, an ounce.

5. (obsolete baseball slang) A ball.

6. (obsolete, slang) A watch-seal.

7. Alternative letter-case form of Onion (“an inhabitant of Bermuda; a Bermudian”).

8. (4chan slang, slang) Soy, particularly when used in compound words related to the soy boy stereotype.