countermine vs sabotage

countermine and sabotage both are nouns.

Word	Noun	Adjective	Verb	Adverb
countermine	Yes	No	Yes	No
sabotage	Yes	No	Yes	No

As verbs, countermine and sabotage are synonyms defined as:

Other synonyms of countermine include counteract, subvert, undermine, weaken.

countermine (noun)	sabotage (noun)
(military) a tunnel dug to defeat similar activities by the enemy	a deliberate act of destruction or disruption in which equipment is damaged

countermine (verb)	sabotage (verb)
destroy enemy mines with one's own mines	destroy property or hinder normal operations
destroy property or hinder normal operations