ballgame
n. countable B2 Upper Intermediate US //bɔɫˈɡeɪm// UK //bˈɔːlɡeɪm// ball·game
n. a game played with a ball, like baseball or basketball. It can also mean a situation or a problem that is very difficult to deal with.
n. a game involving the use of a ball, such as baseball or basketball. In a figurative sense, it refers to a complex situation or a significant problem.
The kids are playing a ballgame in the park.
The manager said the project was a ballgame because the requirements kept changing every week.
While the physical ballgame was a close contest, the real challenge for the team was managing the logistical hurdles of playing in a foreign country.