Definition of "Leaf" :

noun: hinged or detachable flat section (as of a table or door)

noun: a sheet of any written or printed material (especially in a manuscript or book)

noun: the main organ of photosynthesis and transpiration in higher plants

verb: produce leaves, of plants

verb: turn over pages

"Leaf through a book."

verb: look through a book or other written material

"She leafed through the volume."