boyau /bwoˈyō, bwäˈyō or boiˈō/ (fortification)

A communication trench

• truffles
• truffling
• trufflings
• trug
• trugs
• truing
• truism
• truisms
• truistic
• trull
• Trullan
• trulls
• truly
• trumeau
• trumeaux
• trump
• trump card
• trump cards
• trumped
• trumped-up
• trumperies
• trumpery
• trumpet
• trumpet call
• trumpet calls