gramme vs gm

gramme and gm both are nouns.

Word	Noun	Adjective	Verb	Adverb
gramme	Yes	No	No	No
gm	Yes	No	No	No

As nouns, gramme and gm are synonyms defined as:

gramme and gm: a metric unit of weight equal to one thousandth of a kilogram

Other synonyms of gramme include g, gram.

gramme (noun)	gm (noun)
a metric unit of weight equal to one thousandth of a kilogram	a metric unit of weight equal to one thousandth of a kilogram