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

• airplane landing
• airplane maneuver
• airplane manoeuvre
• airplane mechanics
• airplane pilot
• airplane propeller
• airplane ticket
• airplay
• airport
• airport terminal
• airpost
• airs
• airscrew
• airship
• airsick
• airsickness
• airside
• airspace
• airspeed
• airstream
• airstrip
• airt
• airtight
• airtime
• airwave