savouring vs savoring

savouring and savoring both are nouns.

Word	Noun	Adjective	Verb	Adverb
savouring	Yes	No	No	No
savoring	Yes	No	No	No

As nouns, savouring and savoring are synonyms defined as:

savouring and savoring: taking a small amount into the mouth to test its quality

Other synonyms of savouring include degustation, relishing, tasting.

savouring (noun)	savoring (noun)
taking a small amount into the mouth to test its quality	taking a small amount into the mouth to test its quality