putsch vs coup d'etat

putsch and coup d'etat both are nouns.

Word	Noun	Adjective	Verb	Adverb
putsch	Yes	No	No	No
coup d'etat	Yes	No	No	No

As nouns, putsch and coup d'etat are synonyms defined as:

putsch and coup d'etat: a sudden and decisive change of government illegally or by force

Other synonyms of putsch include coup, takeover.

putsch (noun)	coup d'etat (noun)
a sudden and decisive change of government illegally or by force	a sudden and decisive change of government illegally or by force