au grand sérieux /ō grã sā-ryøˈ/ (French; now très au sérieux /tre-zō/) in all seriousness.

• breathing hole
• breathing holes
• breathings
• breathing space
• breathing spaces
• breathing-time
• breathing-while
• breathless
• breathlessly
• breathlessness
• breathlessnesses
• breaths
• breathtaking
• breathtakingly
• breath test
• breath tests
• breathy
• breccia
• breccias
• brecciated
• brecham
• brechams
• Brechtian
• bred
• brede