ocean

ocean /ˈoʊʃən/ noun
plural oceans
ocean
/ˈoʊʃən/
noun
plural oceans
Britannica Dictionary definition of OCEAN
1 
[noncount] : the salt water that covers much of the Earth's surface — often used with the
— often used before another noun
— see color picture on this page
2 
[count] or Ocean : one of the five large areas of salt water that cover much of the Earth's surface
3 
[count] informal : a very large number or amount of something — often plural

a drop in the ocean

— see 1drop

— oceanic

/ˌoʊʃiˈænɪk/ adjective, technical