relief (a type of carving) / sharp contrast, being brought into relief

bowl

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

ball (formal dance event)

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

an area with sides higher than the center: an indentation, a depression, a dip, a divot, a hole / (slang) female genitalia, the vagina

an indentation, a dip or divot, a hollow, a dent in a surface

a sunken center / a place or object with a sunken center

an aunt (a parent’s sister or sister-in-law)

late spring / third month of the lunar calendar