pommel vs decoration

pommel and decoration both are nouns.

Word	Noun	Adjective	Verb	Adverb
pommel	Yes	No	Yes	No
decoration	Yes	No	No	No

As nouns, decoration is a hypernym of pommel; that is, decoration is a word with a broader meaning than pommel:

Other hypernyms of pommel include ornament, ornamentation.

pommel (noun)	decoration (noun)
handgrip formed by the raised front part of a saddle	the act of decorating something (in the hope of making it more attractive)
an ornament in the shape of a ball on the hilt of a sword or dagger	something used to beautify
a handgrip that a gymnast uses when performing exercises on a pommel horse	an award for winning a championship or commemorating some other event

pommel (verb)	decoration (verb)
strike, usually with the fist