initiate vs initiator

initiate and initiator both are nouns.

Word	Noun	Adjective	Verb	Adverb
initiate	Yes	No	Yes	No
initiator	Yes	No	No	No

initiate (noun)	initiator (noun)
people who have been introduced to the mysteries of some field or activity	a person who initiates a course of action
someone who has been admitted to membership in a scholarly field
someone new to a field or activity

initiate (verb)	initiator (verb)
set in motion, start an event or prepare the way for
bring up a topic for discussion
take the lead or initiative in; participate in the development of
bring into being
accept people into an exclusive society or group, usually with some rite