favorite vs favourite

favorite and favourite both are nouns.

Word	Noun	Adjective	Verb	Adverb
favorite	Yes	Yes	Yes	No
favourite	Yes	Yes	Yes	No

As adjectives, favorite and favourite are synonyms defined as:

favorite and favourite: preferred above all others and treated with partiality

Other synonyms of favorite include best-loved, favored, favoured, pet, preferent, preferred.

As adjectives, favorite and favourite are synonyms defined as:

As nouns, favorite and favourite are synonyms defined as:

As nouns, favorite and favourite are synonyms defined as:

Other synonyms of favorite include darling, dearie, deary, ducky, pet.

As nouns, favorite and favourite are synonyms defined as:

Other synonyms of favorite include front-runner.

As verbs, favorite and favourite are synonyms defined as:

favorite and favourite: To mark an item as a personal favorite on social media

favorite (noun)	favourite (noun)
something regarded with special favor or liking	something regarded with special favor or liking
a special loved one	a special loved one
a competitor thought likely to win	a competitor thought likely to win

favorite (adjective)	favourite (adjective)
preferred above all others and treated with partiality	preferred above all others and treated with partiality
appealing to the general public	appealing to the general public

favorite (verb)	favourite (verb)
To mark an item as a personal favorite on social media	To mark an item as a personal favorite on social media