1. [Brit] Advisory, Conciliation and Arbitration Service 
2. Airborne Collision Avoidance System

Encyclopedia: ACAS

• wrongfully
• wrongfulness
• wrongheaded
• wrongheadedly
• wrongly
• wrongness
• wroth
• wrothful
• wrought
• wrought iron
• wrought-up
• wrt
• wry
• wry face
• wryly
• wrymouth
• wryneck
• wryness
• WSW
• WTC
• WTO
• WTV
• Wu
• Wu dialect
• Wuerzburg