blazon vs decorate

blazon is a noun but decorate is not a noun.

Word	Noun	Adjective	Verb	Adverb
blazon	Yes	No	Yes	No
decorate	No	No	Yes	No

As verbs, decorate is a hypernym of blazon; that is, decorate is a word with a broader meaning than blazon:

Other hypernyms of blazon include adorn, beautify, embellish, grace, ornament.

blazon (noun)	decorate (noun)
the official symbols of a family, state, etc.

blazon (verb)	decorate (verb)
decorate with heraldic arms	provide with decoration
	make more attractive by adding ornament, colour, etc.
	award a mark of honor, such as a medal, to
	be beautiful to look at