expel vs overcome

expel and overcome both are verbs.

Word	Noun	Adjective	Verb	Adverb
expel	No	No	Yes	No
overcome	No	No	Yes	No

As verbs, overcome is a hypernym of expel; that is, overcome is a word with a broader meaning than expel:

Other hypernyms of expel include defeat, get the better of.

expel (verb)	overcome (verb)
eliminate (a substance)	get on top of; deal with successfully
cause to flee	overcome, usually through no fault or weakness of the person that is overcome
force to leave or move out	win a victory over
remove from a position or office	overcome, as with emotions or perceptual stimuli