counterspy vs mole

counterspy and mole both are nouns.

Word	Noun	Adjective	Verb	Adverb
counterspy	Yes	No	No	No
mole	Yes	No	No	No

As nouns, counterspy and mole are synonyms defined as:

counterspy (noun)	mole (noun)
a spy who works against enemy espionage	small velvety-furred burrowing mammal having small eyes and fossorial forefeet
	a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away
	a small congenital pigmented spot on the skin
	a spy who works against enemy espionage
	the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites
	spicy sauce often containing chocolate