Geography:
* The tributary flowed into the main river, carrying water from the surrounding mountains.
* The Amazon River has countless tributaries that feed its vast system.
Figurative:
* Her work is a tributary to the great artists who came before her. (Meaning her work is inspired by those artists)
* The new museum was a tributary to the city's rich history. (Meaning the museum celebrated the city's history)
Historical:
* The conquered territories were forced to pay tribute to the empire, becoming its tributaries. (Meaning they were required to give money or resources)
Other:
* The small town's economy was based on agriculture and its tributary streams. (Meaning the streams supported the town's farming)
Remember: "Tributary" can be a noun or an adjective.