behaviourism vs behaviorism

behaviourism and behaviorism both are nouns.

Word	Noun	Adjective	Verb	Adverb
behaviourism	Yes	No	No	No
behaviorism	Yes	No	No	No

As nouns, behaviourism and behaviorism are synonyms defined as:

behaviourism and behaviorism: an approach to psychology that emphasizes observable measurable behavior

Other synonyms of behaviourism include behavioristic psychology, behaviouristic psychology.

behaviourism (noun)	behaviorism (noun)
an approach to psychology that emphasizes observable measurable behavior	an approach to psychology that emphasizes observable measurable behavior