riptide vs turbulence

riptide and turbulence both are nouns.

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

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

riptide: a stretch of turbulent water in a river or the sea caused by one current flowing into or across another current
turbulence: unstable flow of a liquid or gas

Other hypernyms of riptide include turbulency.

riptide (noun)	turbulence (noun)
a strong surface current flowing outwards from a shore	unstable flow of a liquid or gas
a stretch of turbulent water in a river or the sea caused by one current flowing into or across another current	a state of violent disturbance and disorder (as in politics or social conditions generally)
	instability in the atmosphere