gm vs g

gm and g both are nouns.

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

As nouns, gm and g are synonyms defined as:

Other synonyms of gm include gram, gramme.

gm (noun)	g (noun)
a metric unit of weight equal to one thousandth of a kilogram	the 7th letter of the Roman alphabet
	a metric unit of weight equal to one thousandth of a kilogram
	a unit of force equal to the force exerted by gravity; used to indicate the force to which a body is subjected when it is accelerated