To send mail by air.
To (unintentionally) throw the ball well over a fielder's head where that fielder is unable to make a play on the ball.
The items of mail so carried.
The system of conveying mail using aircraft.
To send to a final destination.
To stamp or impress; to affect.
To entrust to the care of another.
To assign; to devote; to set apart.
To transfer to the custody of, usually for sale, transport, or safekeeping.