grow vs sprout

grow is not a noun while sprout is a noun.

Word	Noun	Adjective	Verb	Adverb
grow	No	No	Yes	No
sprout	Yes	No	Yes	No

As verbs, sprout is a hyponym of grow; that is, sprout is a word with a more specific, narrower meaning than grow:

grow: come to have or undergo a change of (physical features and attributes)
sprout: put forth and grow sprouts or shoots

Other hyponyms of grow include feather, fledge, regrow, spring, stock, stool, tiller, leaf, pod, teethe, pupate, get up, work up, cut.

As verbs, sprout is a hyponym of grow; that is, sprout is a word with a more specific, narrower meaning than grow:

grow (noun)	sprout (noun)
	a newly grown bud (especially from a germinating seed)
	any new growth of a plant such as a new branch or a bud

grow (verb)	sprout (verb)
come to have or undergo a change of (physical features and attributes)	put forth and grow sprouts or shoots
become larger, greater, or bigger; expand or gain	produce buds, branches, or germinate
cause to grow or develop
increase in size by natural process
pass into a condition gradually, take on a specific property or attribute; become
develop and reach maturity; undergo maturation
grow emotionally or mature
become attached by or as if by the process of growth
cultivate by growing, often involving improvements by means of agricultural techniques
come into existence; take on form or shape