tr.v. ex·pelled, ex·pel·ling, ex·pels
1. To force or drive out: expel an invader.
2. To discharge from or as if from a receptacle: expelled a sigh of relief.
3. To deprive of membership or rights in an organization; force to leave: expelled the student from college for cheating.
[Middle English expellen, from Latin expellere : ex-, ex- + pellere, to drive; see pel-5 in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.