There are a few basic terms used in hypnosis:
Hypnosis – The process of hypnotizing
Hypnotist – The person who performs the hypnosis, commonly used for stage hypnosis
Hypnotherapy – A therapy method using hypnosis
Hypnotherapist – The person who does the induction of hypnosis on a subject who lies down on a recliner. In short, person who uses hypnosis as a therapy
Hypnotizability – The ability to be hypnotized
Self-hypnosis – Using hypnosis on oneself
Now you knew about them, at least you have some foundations in hypnosis.