keyfob vs accoutrement

keyfob and accoutrement both are nouns.

Word	Noun	Adjective	Verb	Adverb
keyfob	Yes	No	No	No
accoutrement	Yes	No	No	No

As nouns, accoutrement is a hypernym of keyfob; that is, accoutrement is a word with a broader meaning than keyfob:

keyfob: A small object fastened to a key chain or key ring and designed to be comfortably grasped.
accoutrement: clothing that is worn or carried, but not part of your main clothing

Other hypernyms of keyfob include accessory, accouterment.

keyfob (noun)	accoutrement (noun)
A small object fastened to a key chain or key ring and designed to be comfortably grasped.	clothing that is worn or carried, but not part of your main clothing