voltage vs electromotive force

voltage and electromotive force both are nouns.

Word	Noun	Adjective	Verb	Adverb
voltage	Yes	No	No	No
electromotive force	Yes	No	No	No

As nouns, voltage and electromotive force are synonyms defined as:

voltage and electromotive force: the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts

Other synonyms of voltage include emf.

voltage (noun)	electromotive force (noun)
the difference in electrical charge between two points in a circuit expressed in volts	the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts