drive out vs expectorate

drive out and expectorate both are verbs.

Word	Noun	Adjective	Verb	Adverb
drive out	No	No	Yes	No
expectorate	No	No	Yes	No

As verbs, drive out and expectorate are synonyms defined as:

Other synonyms of drive out include clear out.

drive out (verb)	expectorate (verb)
clear out the chest and lungs	discharge (phlegm or sputum) from the lungs and out of the mouth
force or drive out	clear out the chest and lungs
force to go away; used both with concrete and metaphoric meanings