[+ obj] 1 : to officially force (someone) to leave a place or organization
▪ The club may expel members who do not follow the rules. ▪ She was expelled from school for bad behavior. 2 : to push or force (something) out
▪ expel air from the lungs
▪ The club may expel members who do not follow the rules. ▪ She was expelled from school for bad behavior.
▪ expel air from the lungs





