gramme vs gram

gramme and gram both are nouns.

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

As nouns, gramme and gram are synonyms defined as:

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

Other synonyms of gramme include g, gm.

gramme (noun)	gram (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