keyfob vs accouterment

keyfob and accouterment both are nouns.

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

As nouns, accouterment is a hypernym of keyfob; that is, accouterment 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.
accouterment: clothing that is worn or carried, but not part of your main clothing

Other hypernyms of keyfob include accessory, accoutrement.

keyfob (noun)	accouterment (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