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

A swallow hole

• builders' bottoms
• builder's bum
• builders' merchant
• builder's tea
• build in
• building
• building block
• building blocks
• building-board
• building-boards
• building line
• building lines
• building paper
• building papers
• buildings
• building societies
• building society
• buildout
• builds
• build up
• build-up
• built
• built-in
• built-in obsolescence
• built-up