lopper vs pruner

lopper and pruner both are nouns.

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

As nouns, lopper and pruner are synonyms defined as:

lopper and pruner: a long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees

Other synonyms of lopper include pruning hook.

lopper (noun)	pruner (noun)
a long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees	a long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees
	a worker who thins out and trims trees and shrubs