leaf vs parenchyma

leaf and parenchyma both are nouns.

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

leaf (noun)	parenchyma (noun)
hinged or detachable flat section (as of a table or door)	animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels
a sheet of any written or printed material (especially in a manuscript or book)	the primary tissue of higher plants composed of thin-walled cells that remain capable of cell division even when mature; constitutes the greater part of leaves, roots, the pulp of fruits, and the pith of stems
the main organ of photosynthesis and transpiration in higher plants

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