T/R

AcronymDefinition
T/RTransceiver
T/RTransmit/Receive
T/RTransmitter/Receiver (also seen as TR)
T/RTail Rotor (helicopter)
T/RTip/Ring
T/RThanks and regards
T/RTrust Receipt
T/RTransmission/Reflection
T/RTransportation Request
T/RThrust Reverse
T/RTop of Rail
T/RTangential/Radial (wood movement (swelling) ratio due to seasonal humidity changes)