force majeure vs act of God

force majeure and act of God both are nouns.

Word	Noun	Adjective	Verb	Adverb
force majeure	Yes	No	No	No
act of God	Yes	No	No	No

As nouns, force majeure and act of God are synonyms defined as:

force majeure and act of God: a natural and unavoidable catastrophe that interrupts the expected course of events

Other synonyms of force majeure include inevitable accident, unavoidable casualty, vis major.

force majeure (noun)	act of God (noun)
a natural and unavoidable catastrophe that interrupts the expected course of events	a natural and unavoidable catastrophe that interrupts the expected course of events