A large body of salt water that covers most of the earth's surface.

A vast expanse of any water body.

जल क्षेत्र

English Usage: The ocean of stars was breathtaking.

Hindi Usage: तारों का जल क्षेत्र मनमोहक था।

A set of connected things or parts forming a complex whole.

A procedure or process for doing something.

प्रणाली

English Usage: The system for filing taxes has changed this year.

Hindi Usage: कर दाखिल करने की प्रणाली इस वर्ष बदल गई है।