Ocean refers to the vast body of salt water that covers almost three quarters of the earth's surface.
In geography, ocean is divided into five major parts: the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans.
The term "ocean" also refers to:
1. A very large expanse or quantity (e.g. an ocean of possibilities)
2. In computing, Ocean is a distributed storage system developed by Alibaba
3. In literature, it often symbolizes vastness, depth, or mystery