trim vs decorate

trim is a noun but decorate is not a noun.

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

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

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

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

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

trim (noun)	decorate (noun)
cutting down to the desired size or shape
a decoration or adornment typically on the edge of a garment
attitude of an aircraft in flight when allowed to take its own orientation
a state of arrangement or appearance

trim (adjective)	decorate (adjective)
severely simple in line or design
thin and fit
characterized by order and neatness; free from disorder
neat and smart in appearance

trim (verb)	decorate (verb)
cut down on; make a reduction in	provide with decoration
adjust (sails on a ship) so that the wind is optimally used	make more attractive by adding ornament, colour, etc.
cut closely	award a mark of honor, such as a medal, to
cultivate, tend, and cut back the growth of	be beautiful to look at
remove the edges from and cut down to the desired size
decorate (food), as with parsley or other ornamental foods
decorate, as with ornaments
be in equilibrium during a flight
balance in flight by regulating the control surfaces