onionnoun [ C or U ]uk /ˈʌn.jən/ us /ˈʌn.jən/
- Lightly brown the onion before adding the tomatoes.
- Fry the onions till they start to colour.
- You should have seen the onions he grew for the competition - they were monsters!
- The onions had been pickled in brine.
- Roughly chop the tomatoes and add to the onions.