o ‧ cean S3 W2 /ˈəʊʃ ə n $ ˈoʊ-/ BrE AmE noun
[ Date: 1200-1300 ; Language: Latin ; Origin: oceanus , from Greek Okeanos name of a river believed to flow around the world ]
1 . the ocean especially American English the great mass of salt water that covers most of the Earth’s surface SYN the sea :
She stood on the beach, gazing at the ocean.
I like to swim in the ocean when it’s warm enough.
2 . [countable] one of the very large areas of sea on the Earth’s surface:
the Pacific Ocean
3 . oceans of something informal a lot of something, especially a liquid:
oceans of champagne
⇨ a drop in the ocean at ↑ drop 2 (8)