1. A writer of dialogues 
2. A speaker in a dialogue

Derived forms: dialogists

• bolt out
• bolt-hole
• bolter
• bolti
• Boltonia
• Boltzmann
• Boltzmann distribution law
• Boltzmann's constant
• bolus
• Bolzano
• Bomarea
• Bomarea edulis
• Bomarea salsilla
• bomb
• bomb blast
• bomb calorimeter
• bomb out
• bomb rack
• bomb shelter
• bomb site
• bomb up
• Bombacaceae
• bombard
• bombardier
• bombardier beetle