take the floor vs stand up

take the floor and stand up both are verbs.

Word	Noun	Adjective	Verb	Adverb
take the floor	No	No	Yes	No
stand up	No	No	Yes	No

As verbs, stand up is a hypernym of take the floor; that is, stand up is a word with a broader meaning than take the floor:

Other hypernyms of take the floor include arise, get up, rise, uprise.

take the floor (verb)	stand up (verb)
rise in order to make a speech or motion	defend against attack or criticism
stand up to dance	refuse to back down; remain solid under criticism or attack
	be standing; be upright
	put into an upright position
	rise to one's feet
	rise up as in fear
	resist or withstand wear, criticism, etc.