turpitude vs transgression

turpitude and transgression both are nouns.

Word	Noun	Adjective	Verb	Adverb
turpitude	Yes	No	No	No
transgression	Yes	No	No	No

As nouns, transgression is a hypernym of turpitude; that is, transgression is a word with a broader meaning than turpitude:

turpitude: a corrupt or depraved or degenerate act or practice
transgression: the act of transgressing; the violation of a law or a duty or moral principle

Other hypernyms of turpitude include evildoing.

turpitude (noun)	transgression (noun)
a corrupt or depraved or degenerate act or practice	the act of transgressing; the violation of a law or a duty or moral principle
	the action of going beyond or overstepping some boundary or limit
	the spreading of the sea over land as evidenced by the deposition of marine strata over terrestrial strata