riptide vs turbulency

riptide and turbulency both are nouns.

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

As nouns, turbulency is a hypernym of riptide; that is, turbulency 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
turbulency: unstable flow of a liquid or gas

Other hypernyms of riptide include turbulence.

riptide (noun)	turbulency (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