river vs rejuvenate

river is a noun but rejuvenate is not a noun.

Word	Noun	Adjective	Verb	Adverb
river	Yes	No	No	No
rejuvenate	No	No	Yes	No

river (noun)	rejuvenate (noun)
a large natural stream of water (larger than a creek)

river (verb)	rejuvenate (verb)
	become young again
	make younger or more youthful
	develop youthful topographical features
	get or give new life or energy; return to life, regain energy, recuperate
	cause (a stream or river) to erode, as by an uplift of the land