fixings vs trimmings

fixings and trimmings both are nouns.

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

As nouns, fixings and trimmings are synonyms defined as:

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

fixings (noun)	trimmings (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