Short for ボール紙 (bōru-gami): non-corrugated cardboard, pasteboard / Short for 段ボール (danbōru): corrugated cardboard

bowl

ball (sphere) / (basebal) ball (pitch that falls outside the strike zone)

ball (formal dance event)

(baseball, softball) Synonym of 四球 (shikyū, “walk”)

disco ball, mirrorball

ball person

Synonym of 球技 (kyūgi, “ball game”)

(Chinese mythology) a sacred tree said to exist in Japan / (Chinese mythology) a land to the east, often identified with Japan

having no confidence in someone or something