1. Being in effect or operation
   "bus service is in operation during the emergency"
   - operational, operating

See also: operative

• bag-shaped
• bagascosis
• bagasse
• bagassosis
• bagatelle
• Bagdad
• bagel
• bagful
• baggage
• baggage car
• baggage claim
• baggage reclaim
• baggageman
• bagger
• baggily
• bagging
• baggy
• Baghdad
• bagman
• bagnio
• bagpipe
• bagpiper
• baguet
• baguette
• bah