leaf shape vs leaf

leaf shape and leaf both are nouns.

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

leaf shape (noun)	leaf (noun)
any of the various shape that leaves of plants can assume	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

leaf shape (verb)	leaf (verb)
	produce leaves, of plants
	turn over pages
	look through a book or other written material