grow vs leaf

grow is not a noun while leaf is a noun.

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

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

grow: come to have or undergo a change of (physical features and attributes)
leaf: produce leaves, of plants

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

grow (noun)	leaf (noun)
	hinged or detachable flat section (as of a table or door)
	a sheet of any written or printed material (especially in a manuscript or book)
	the main organ of photosynthesis and transpiration in higher plants

grow (verb)	leaf (verb)
come to have or undergo a change of (physical features and attributes)	produce leaves, of plants
become larger, greater, or bigger; expand or gain	turn over pages
cause to grow or develop	look through a book or other written material
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