enactment vs legal instrument

enactment and legal instrument both are nouns.

Word	Noun	Adjective	Verb	Adverb
enactment	Yes	No	No	No
legal instrument	Yes	No	No	No

As nouns, legal instrument is a hypernym of enactment; that is, legal instrument is a word with a broader meaning than enactment:

enactment: a legal document codifying the result of deliberations of a committee or society or legislative body
legal instrument: (law) a document that states some contractual relationship or grants some right

Other hypernyms of enactment include instrument, legal document, official document.

enactment (noun)	legal instrument (noun)
acting the part of a character on stage; dramatically representing the character by speech and action and gesture	(law) a document that states some contractual relationship or grants some right
the passing of a law by a legislative body
a legal document codifying the result of deliberations of a committee or society or legislative body