boyau /bwoˈyō, bwäˈyō or boiˈō/ (fortification)

A communication trench

• cajolery
• cajoles
• cajoling
• Cajun
• cash-and-carry
• cashaw
• cashaws
• cashback
• cashbacks
• cash-book
• cash-books
• cash-box
• cash-boxes
• cash card
• cash cards
• cash cow
• cash cows
• cash crop
• cash crops
• cash desk
• cash desks
• cash dispenser
• cash dispensers
• cash down
• cashed