hypnotiser vs hypnotist

hypnotiser and hypnotist both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypnotiser	Yes	No	No	No
hypnotist	Yes	No	No	No

As nouns, hypnotiser and hypnotist are synonyms defined as:

Other synonyms of hypnotiser include hypnotizer, mesmerist, mesmerizer.

hypnotiser (noun)	hypnotist (noun)
a person who induces hypnosis	a person who induces hypnosis