trimmings vs fixings

trimmings and fixings both are nouns.

Word	Noun	Adjective	Verb	Adverb
trimmings	Yes	No	No	No
fixings	Yes	No	No	No

As nouns, trimmings and fixings are synonyms defined as:

trimmings and fixings: the accessories that normally accompany (something or some activity)

trimmings (noun)	fixings (noun)
the accessories that normally accompany (something or some activity)	the accessories that normally accompany (something or some activity)
	food that is a component of a mixture in cooking