joule vs watt second

joule and watt second both are nouns.

Word	Noun	Adjective	Verb	Adverb
joule	Yes	No	No	No
watt second	Yes	No	No	No

As nouns, joule and watt second are synonyms defined as:

joule and watt second: a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second

Other synonyms of joule include J.

joule (noun)	watt second (noun)
a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second	a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second