contain

Definition

To have something inside or as part of it. It can also mean to keep something under control, especially a dangerous situation, feeling, or problem.

Usage & Nuances

Common in formal and everyday English. Use 'contain' for contents ('The box contains books'), ingredients/information ('This report contains errors'), and control ('contain the fire'). 'Include' often sounds more natural for listing parts, while 'contain' emphasizes what is inside. Not usually used for people in casual speech.

Example Sentences