dolina /dō-lēˈnə/ or doline /dō-lēnˈ/ (geology)

A swallow hole

• box seat
• box seats
• box set
• box-spanner
• box-spanners
• box spring
• box springs
• box the compass
• boxthorn
• boxthorns
• boxties
• box-tree
• boxty
• box van
• box vans
• box-wagon
• box-wagons
• boxwallah
• boxwallahs
• boxwood
• boxwoods
• boxy
• boy
• boyar
• boyars