ampere-second vs coulomb

ampere-second and coulomb both are nouns.

Word	Noun	Adjective	Verb	Adverb
ampere-second	Yes	No	No	No
coulomb	Yes	No	No	No

As nouns, ampere-second and coulomb are synonyms defined as:

ampere-second and coulomb: a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second

Other synonyms of ampere-second include C.

ampere-second (noun)	coulomb (noun)
a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second	a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second