IPA: /ˈtræksuːt/
KK: /træksut/
A type of clothing made up of a matching jacket and pants, typically worn by athletes or during exercise.
She wore her tracksuit to the gym for a comfortable workout.
Tracksuit → It is formed from "track" (from Old English *tracian*, meaning to pull or draw) and "suit" (from Old French *suite*, meaning a set of clothing). The word "tracksuit" refers to a set of clothing designed for athletic activities, particularly for use on a track.
Think of a 'set of clothing' ('suit') designed for activities on a 'track' — that's what a tracksuit is.
No commonly confused words.