rivulet

Example:Instead of a rivulet, a more appropriate term might be 'gulch' for the large water stream.

Definition:A large stream of water, especially one that forms a deep, narrow valley, as in an arid region.

Example:The ocean was far larger than the small rivulet in the park.

Definition:A vast stretch of water, often used in the plural to refer to earth’s large bodies of saltwater.

Example:The river would eventually flow into the sea, not a mere rivulet.

Definition:A large body of water that covers a major portion of the Earth’s surface and is connected to the ocean.