E.S.P. vs psychic phenomenon

E.S.P. and psychic phenomenon both are nouns.

Word	Noun	Adjective	Verb	Adverb
E.S.P.	Yes	No	No	No
psychic phenomenon	Yes	No	No	No

As nouns, psychic phenomenon is a hypernym of E.S.P.; that is, psychic phenomenon is a word with a broader meaning than E.S.P.:

E.S.P.: apparent power to perceive things that are not present to the senses
psychic phenomenon: phenomena that appear to contradict physical laws and suggest the possibility of causation by mental processes

Other hypernyms of E.S.P. include parapsychology, psychic phenomena.

E.S.P. (noun)	psychic phenomenon (noun)
apparent power to perceive things that are not present to the senses	phenomena that appear to contradict physical laws and suggest the possibility of causation by mental processes