Breadcrumb Home > Thesaurus > O Synonyms of onions Find synonyms for: Noun 1. onion, bulb usage: the bulb of an onion plant 2. onion, onion plant, Allium cepa, alliaceous plant usage: bulbous plant having hollow leaves cultivated worldwide for its rounded edible bulb 3. onion, vegetable, veggie, veg usage: an aromatic flavorful vegetable WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of onions (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: turgid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language