electrocutioner vs executioner

electrocutioner and executioner both are nouns.

Word	Noun	Adjective	Verb	Adverb
electrocutioner	Yes	No	No	No
executioner	Yes	No	No	No

As nouns, executioner is a hypernym of electrocutioner; that is, executioner is a word with a broader meaning than electrocutioner:

electrocutioner: an executioner who uses electricity to kill the condemned person
executioner: an official who inflicts capital punishment in pursuit of a warrant

Other hypernyms of electrocutioner include public executioner.

electrocutioner (noun)	executioner (noun)
an executioner who uses electricity to kill the condemned person	an official who inflicts capital punishment in pursuit of a warrant