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

Derived forms: dialogists

• aerodontalgia
• aerodrome
• aerodynamic
• aerodynamic force
• aerodynamic lift
• aerodynamically
• aerodynamics
• aeroembolism
• aerofoil
• aerogel
• aerogenerator
• aerogram
• aerogramme
• aerolite
• aerolitic
• aerological
• aerology
• abroach
• abroad
• Abrocoma
• abrocome
• abrogate
• abrogation
• abrogator
• Abronia