onion

noun

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

The bulb of such a plant.

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

(slang) Of a drug, an ounce.

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

(Bermuda, slang) An inhabitant of Bermuda; a Bermudian.

Alternative letter-case form of Onion (“an inhabitant of Bermuda; a Bermudian”). [(Bermuda, slang) An inhabitant of Bermuda; a Bermudian.]

(obsolete baseball slang) A ball.

(obsolete, slang) A watch-seal.

Roots

unioonion- · Latin · single large pearl, single-bulbed onion

Synonyms & related words for onion

Find synonyms, related words, and the definition of onion. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to onion

Explore words related to onion — words associated with it, words that go with it, and its nearest matches in meaning. Related words include shallot, garlic, allium, scallions, alliaceous, tomatoes, chives, leeks. Click any word to make it the center of the map and keep exploring the web of connections.

Where does onion come from?

The word onion breaks down into one root of Latin origin: the root onion, from Latin unio (“single large pearl, single-bulbed onion”). Explore each root to see other English words built from the same source.