tinsel vs decorate

tinsel is a noun but decorate is not a noun.

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

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

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

tinsel (noun)	decorate (noun)
a thread with glittering metal foil attached
a showy decoration that is basically valueless

tinsel (verb)	decorate (verb)
interweave with tinsel	provide with decoration
adorn with tinsel	make more attractive by adding ornament, colour, etc.
impart a cheap brightness to	award a mark of honor, such as a medal, to
	be beautiful to look at