turbulent flow vs sea

turbulent flow and sea both are nouns.

Word	Noun	Adjective	Verb	Adverb
turbulent flow	Yes	No	No	No
sea	Yes	No	No	No

As nouns, sea is a hyponym of turbulent flow; that is, sea is a word with a more specific, narrower meaning than turbulent flow:

turbulent flow (noun)	sea (noun)
flow in which the velocity at any point varies erratically	a division of an ocean or a large body of salt water partially enclosed by land
	turbulent water with swells of considerable size
	anything apparently limitless in quantity or volume