putsch vs countercoup

putsch and countercoup both are nouns.

Word	Noun	Adjective	Verb	Adverb
putsch	Yes	No	No	No
countercoup	Yes	No	No	No

As nouns, countercoup is a hyponym of putsch; that is, countercoup is a word with a more specific, narrower meaning than putsch:

putsch: a sudden and decisive change of government illegally or by force
countercoup: a sudden and decisive overthrow of a government that gained power by a coup d'etat

putsch (noun)	countercoup (noun)
a sudden and decisive change of government illegally or by force	a sudden and decisive overthrow of a government that gained power by a coup d'etat