peruse vs leaf

peruse is not a noun while leaf is a noun.

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

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

Other hyponyms of peruse include flick, flip, riff, riffle, thumb.

peruse (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

peruse (verb)	leaf (verb)
examine or consider with attention and in detail	produce leaves, of plants
	turn over pages
	look through a book or other written material