球 - ball, sphere

hitting (a ball with a bat, racket, golf club, etc.); batting; batted ball; struck ball

global warming

sphere; globe; ball; bulb

pitching; throwing a ball; bowling (in cricket); pitched ball

bases on balls and pitches striking the batsmen

tennis

coccus

ball game (e.g. baseball, tennis, soccer)

baseball team

baseball stadium; ballpark

pitcher's first pitch (to batter, or in the game)

baseball club (at a university, corporation, etc.); baseball team