electroshock vs shock therapy

electroshock and shock therapy both are nouns.

Word	Noun	Adjective	Verb	Adverb
electroshock	Yes	No	No	No
shock therapy	Yes	No	No	No

As nouns, shock therapy is a hypernym of electroshock; that is, shock therapy is a word with a broader meaning than electroshock:

electroshock: the administration of a strong electric current that passes through the brain to induce convulsions and coma
shock therapy: treatment of certain psychotic states by the administration of shocks that are followed by convulsions

Other hypernyms of electroshock include electric healing, electrical healing, electrotherapy, galvanism, shock treatment.

electroshock (noun)	shock therapy (noun)
the administration of a strong electric current that passes through the brain to induce convulsions and coma	treatment of certain psychotic states by the administration of shocks that are followed by convulsions