withstand vs fight down

withstand and fight down both are verbs.

Word	Noun	Adjective	Verb	Adverb
withstand	No	No	Yes	No
fight down	No	No	Yes	No

As verbs, fight down is a hypernym of withstand; that is, fight down is a word with a broader meaning than withstand:

Other hypernyms of withstand include defend, fight, fight back, oppose.

withstand (verb)	fight down (verb)
stand up or offer resistance to somebody or something	fight against or resist strongly
resist or confront with resistance