win back vs get back

win back and get back both are verbs.

Word	Noun	Adjective	Verb	Adverb
win back	No	No	Yes	No
get back	No	No	Yes	No

As verbs, win back and get back are synonyms defined as:

win back and get back: recover something or somebody that appeared to be lost

win back (verb)	get back (verb)
recover something or somebody that appeared to be lost	take revenge or even out a score
	recover something or somebody that appeared to be lost
	get one's revenge for a wrong or an injury