banish vs turn back

banish and turn back both are verbs.

Word	Noun	Adjective	Verb	Adverb
banish	No	No	Yes	No
turn back	No	No	Yes	No

As verbs, turn back is a hypernym of banish; that is, turn back is a word with a broader meaning than banish:

banish: drive away
turn back: force to go away; used both with concrete and metaphoric meanings

Other hypernyms of banish include chase away, dispel, drive away, drive off, drive out, run off.

banish (verb)	turn back (verb)
drive away	go back to a previous state
expel, as if by official decree	turn inside out or upside down
expel from a community or group	hold back, as of a danger or an enemy; check the expansion or influence of
ban from a place of residence, as for punishment	retrace one's course
	force to go away; used both with concrete and metaphoric meanings