accolade vs cachet

accolade and cachet both are nouns.

Word	Noun	Adjective	Verb	Adverb
accolade	Yes	No	No	No
cachet	Yes	No	No	No

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

accolade (noun)	cachet (noun)
a tangible symbol signifying approval or distinction	a seal on a letter
	an indication of approved or superior status
	a warrant formerly issued by a French king who could warrant imprisonment or death in a signed letter under his seal