playoff

noun

Etymology: Deverbal from play off; by surface analysis, play + -off.

1. A final game in a series needed to break a tie.
2. A short series of games to select a league champion.
3. A short series of games to select the last team to be promoted (to elevate to a higher league).
4. A short piece of underscore played during a scene transition in a stage musical, usually reprising a song from the preceding scene.