boyau /bwoˈyō, bwäˈyō or boiˈō/ (fortification)

A communication trench

• madrassah
• madrassahs
• madrassas
• madrepore
• madrepores
• madreporic
• madreporic plate
• madreporic plates
• madreporite
• madreporites
• madreporitic
• madrigal
• madrigalian
• madrigalist
• madrigalists
• madrigals
• Madrileño
• Madrileños
• madrilène
• madrilènes
• madrone
• madroña
• madroñas
• madroño
• madroños