lopper vs lop

lopper is a noun but lop is not a noun.

Word	Noun	Adjective	Verb	Adverb
lopper	Yes	No	No	No
lop	No	No	Yes	No

lopper (noun)	lop (noun)
a long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees

lopper (verb)	lop (verb)
	cultivate, tend, and cut back the growth of
	cut off from a whole