thought-reader vs communicator

thought-reader and communicator both are nouns.

Word	Noun	Adjective	Verb	Adverb
thought-reader	Yes	No	No	No
communicator	Yes	No	No	No

As nouns, communicator is a hypernym of thought-reader; that is, communicator is a word with a broader meaning than thought-reader:

thought-reader (noun)	communicator (noun)
someone with the power of communicating thoughts directly	a person who communicates with others
a magician who seems to discern the thoughts of another person (usually by clever signals from an accomplice)