mole vs counterspy

mole and counterspy both are nouns.

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

As nouns, mole and counterspy are synonyms defined as:

mole (noun)	counterspy (noun)
small velvety-furred burrowing mammal having small eyes and fossorial forefeet	a spy who works against enemy espionage
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