1. to force someone to leave a place, especially a school or organization, as punishment
Usage: third person singular present tense of ‘expel’
2. to force something out from inside
Usage: third person singular present tense of ‘expel’

Examples

• The school expels students who cheat on exams.
• The principal expels anyone caught with drugs.
• The volcano expels hot gases and ash.
• The machine expels air through a small vent.
• The body expels toxins through the kidneys.
• The club expels members who break the rules.