onion

noun8

1. •
   The bulb of such a plant.

   • My eyes are stinging from the chopped onions.
2. •
   A monocotyledonous plant (Allium cepa), allied to garlic, used as vegetable and spice.

   • Some of the weeds that cause an undesirable flavor in milk are: onion, tarweed, scaleweed, garlic, mustard, pepper grass. — 1944
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. •
   Ellipsis of flaming onion; anti-aircraft fire.

   • Plenty kites came over after dark – we stood outside and watched flares, bombs, ack-ack, and onions on the third escarpment. — 1942
5. •
   (slang) Of a drug, an ounce.
6. •
   (slang) Soy, particularly when used in compound words related to the soy boy stereotype.
7. •
   (slang, no longer used) A ball.
8. •
   (slang, no longer used) A watch-seal.

   • […] M was a Magsman, frequenting Pall-Mall; / N was a Nose that turned chirp on his pal; / O was an Onion, possessed by a swell; / P was a Pannie, done niblike and well. […] — 1846

noun1

1. •
   (slang) An inhabitant of Bermuda; a Bermudian.