immorality vs violation

immorality and violation both are nouns.

Word	Noun	Adjective	Verb	Adverb
immorality	Yes	No	No	No
violation	Yes	No	No	No

As nouns, violation is a hyponym of immorality; that is, violation is a word with a more specific, narrower meaning than immorality:

Other hyponyms of immorality include devilry, deviltry, foul play, irreverence, sexual immorality.

immorality (noun)	violation (noun)
morally objectionable behavior	a crime less serious than a felony
the quality of not being in accord with standards of right or good conduct	entry to another's property without right or permission
	the crime of forcing a person to submit to sexual intercourse against his or her will
	a disrespectful act
	an act that disregards an agreement or a right