violence vs turbulence

violence and turbulence both are nouns.

Word	Noun	Adjective	Verb	Adverb
violence	Yes	No	No	No
turbulence	Yes	No	No	No

As nouns, turbulence is a hypernym of violence; that is, turbulence is a word with a broader meaning than violence:

violence: a turbulent state resulting in injuries and destruction etc.
turbulence: a state of violent disturbance and disorder (as in politics or social conditions generally)

Other hypernyms of violence include Sturm und Drang, upheaval.

violence (noun)	turbulence (noun)
an act of aggression (as one against a person who resists)	unstable flow of a liquid or gas
the property of being wild or turbulent	a state of violent disturbance and disorder (as in politics or social conditions generally)
a turbulent state resulting in injuries and destruction etc.	instability in the atmosphere