tracery vs decoration

tracery and decoration both are nouns.

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

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

Other hypernyms of tracery include ornament, ornamentation.

tracery (noun)	decoration (noun)
decoration consisting of an open pattern of interlacing ribs	the act of decorating something (in the hope of making it more attractive)
	something used to beautify
	an award for winning a championship or commemorating some other event