Définitions
1.NounA natural water stream that flows into a larger river or other body of water.
2.NounA vein which drains into another vein."The great saphenous vein is a tributary of the femoral vein."
3.NounA nation, state, or other entity that pays tribute.
4.AdjectiveRelated to the paying of tribute.
5.AdjectiveSubordinate; inferior.
6.AdjectiveYielding supplies of any kind; serving to form or make up, a greater object of the same kind, as a part, branch, etc.; contributing."The Ohio has many tributary streams, and is itself tributary to the Mississippi."