saviour vs savior

saviour and savior both are nouns.

Word	Noun	Adjective	Verb	Adverb
saviour	Yes	No	No	No
savior	Yes	No	No	No

As nouns, saviour and savior are synonyms defined as:

Other synonyms of saviour include deliverer, rescuer.

saviour (noun)	savior (noun)
a person who rescues you from harm or danger	a person who rescues you from harm or danger