expectorate vs expel

expectorate and expel both are verbs.

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

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

expectorate: discharge (phlegm or sputum) from the lungs and out of the mouth
expel: eliminate (a substance)

Other hypernyms of expectorate include discharge, eject, exhaust, release.

expectorate (verb)	expel (verb)
discharge (phlegm or sputum) from the lungs and out of the mouth	eliminate (a substance)
clear out the chest and lungs	cause to flee
	force to leave or move out
	remove from a position or office