marine vs sea

marine and sea both are nouns.

Word	Noun	Adjective	Verb	Adverb
marine	Yes	Yes	No	No
sea	Yes	No	No	No

marine (noun)	sea (noun)
a soldier who serves both on shipboard and on land	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

marine (adjective)	sea (adjective)
relating to or characteristic of or occurring on or in the sea
of or relating to the sea
of or relating to military personnel who serve both on land and at sea (specifically the U.S. Marine Corps)
relating to or involving ships or shipping or navigation or seamen
native to or inhabiting the sea