overturn vs decree

overturn and decree both are nouns.

Word	Noun	Adjective	Verb	Adverb
overturn	Yes	No	Yes	No
decree	Yes	No	Yes	No

As verbs, decree is a hypernym of overturn; that is, decree is a word with a broader meaning than overturn:

Other hypernyms of overturn include rule.

overturn (noun)	decree (noun)
the act of upsetting something	a legally binding command or decision entered on the court record (as if issued by a court or judge)
an improbable and unexpected victory

overturn (verb)	decree (verb)
change radically	decide with authority
rule against	issue a decree
cancel officially
turn from an upright or normal position
cause to overturn from an upright or normal position
cause the downfall of; of rulers