1. To fall; to tumble 
2. To demolish; to subvert; to destroy; to reduce to poverty; to ruin 
3. To cause to fall; to cast down

1. Involved in ruin; ruined

Derived forms: ruinating, ruinated, ruinates

• billowing
• billowy
• billy
• billy buttons
• billy club
• billy goat
• Billy Graham
• Billy Mitchell
• Billy Sunday
• Billy Wilder
• billy-ho
• billycan
• billyo
• billyoh
• billystick
• bilobate
• bilobated
• bilobed
• bilocation
• bilocular
• bilocular capsule
• biloculate
• Biloxi
• bilsted
• biltong