crucifixion vs executing

crucifixion and executing both are nouns.

Word	Noun	Adjective	Verb	Adverb
crucifixion	Yes	No	No	No
executing	Yes	No	No	No

As nouns, executing is a hypernym of crucifixion; that is, executing is a word with a broader meaning than crucifixion:

crucifixion: the act of executing by a method widespread in the ancient world; the victim's hands and feet are bound or nailed to a cross
executing: putting a condemned person to death

Other hypernyms of crucifixion include capital punishment, death penalty, execution.

crucifixion (noun)	executing (noun)
the act of executing by a method widespread in the ancient world; the victim's hands and feet are bound or nailed to a cross	putting a condemned person to death
the infliction of extremely painful punishment or suffering