trimming vs passementerie

trimming and passementerie both are nouns.

Word	Noun	Adjective	Verb	Adverb
trimming	Yes	No	No	No
passementerie	Yes	No	No	No

As nouns, trimming and passementerie are synonyms defined as:

trimming and passementerie: a decoration or adornment typically on the edge of a garment

Other synonyms of trimming include trim.

trimming (noun)	passementerie (noun)
the act of adding decoration	a decoration or adornment typically on the edge of a garment
cutting down to the desired size or shape
a decoration or adornment typically on the edge of a garment