1. (Judeo-Christian and Islamic religions) chief spirit of evil and adversary of God; tempter of mankind; master of Hell
   - Satan, Old Nick, Devil, Lucifer, Beelzebub, Prince of Darkness

Type of: spiritual being, supernatural being

• well-tried
• well-turned
• well-versed
• well-wisher
• well-wishing
• well-worn
• wellbeing
• wellborn
• wellerism
• Welles
• wellhead
• wellie
• wellington
• Wellington boot
• wellness
• wellpoint
• Wells
• wellspring
• welly
• welsh
• Welsh Black
• Welsh corgi
• Welsh dresser
• Welsh onion
• Welsh pony