What is tribute?

1 an act, statement, or gift that is intended to show gratitude, respect, or admiration

• something resulting from something else and indicating its worth

• denoting or relating to a group or musician that performs the music of a more famous one and typically imitates them in appearance and style of performance

2 payment made periodically by one state or ruler to another, esp. as a sign of dependence

3 a proportion of ore or its equivalent, paid to a miner for his work, or to the owner or lessor of a mine.

In the 2008 Science Fiction novel by Suzanne Collins, "tributes" are participants in The Hunger Games.