override vs decree

override and decree both are nouns.

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

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

Other hypernyms of override include rule.

override (noun)	decree (noun)
the act of nullifying; making null and void; counteracting or overriding the effect or force of something	a legally binding command or decision entered on the court record (as if issued by a court or judge)
a manually operated device to correct the operation of an automatic device

override (verb)	decree (verb)
rule against	decide with authority
ride (a horse) too hard	issue a decree
counteract the normal operation of (an automatic gear shift in a vehicle)
prevail over