get the best vs vanquish

get the best and vanquish both are verbs.

Word	Noun	Adjective	Verb	Adverb
get the best	No	No	Yes	No
vanquish	No	No	Yes	No

As verbs, vanquish is a hypernym of get the best; that is, vanquish is a word with a broader meaning than get the best:

get the best: overcome, usually through no fault or weakness of the person that is overcome
vanquish: come out better in a competition, race, or conflict

Other hypernyms of get the best include beat, beat out, crush, shell, trounce.

get the best (verb)	vanquish (verb)
overcome, usually through no fault or weakness of the person that is overcome	come out better in a competition, race, or conflict