IPA: //ˈpleɪdaʊn//
KK: /ˈpleɪdaʊn/
A match that is part of a series of games to determine a champion or winner.
The team won the playdown and advanced to the finals.
Playdown → It is formed from "play" (from Old English *plegian*, meaning to engage in activity or amusement) and "down" (meaning to reduce or lessen). The word "playdown" means to reduce the importance or seriousness of something, often in a context of minimizing its impact.
Think of engaging in activity ('play') and then reducing its seriousness ('down') — that's how 'playdown' means to lessen the importance of something.
No commonly confused words.