IPA: //ˈbɔlˌɡeɪm//
KK: /bɔlˌɡeɪm/
A type of game played with a ball, often involving teams competing against each other.
We went to the ballgame to watch our favorite team play.
Ballgame → The word is a compound of "ball" (from Old English *beall*, meaning a spherical object used in games) and "game" (from Old English *gæm*, meaning a contest or play). Together, they refer to a contest or play involving a spherical object.
Think of a 'spherical object' ('ball') being used in a 'contest' ('game') — that's what a ballgame is all about.
No commonly confused words.