Definitions

1. noun

A river or stream that flows into a larger river or lake.

“The tributary to the Mississippi River was swollen from the recent storms.”

2. noun

Something that contributes or gives support to something larger or more important, such as a person, organization, or country.

“The company’s success is largely due to the tributary efforts of its dedicated employees.”

3. adjective

Of or relating to a river or stream that flows into a larger river or lake.

“The tributary landscape was dotted with small villages and fertile farmland.”