What does RLY stand for?

Aerolineas Yasi, SA de CV - Mexico - FAA designator (FAAC)

Railway

Rally - NCIC car model code

Really - Telegraphy (PCTE)

Relay (AAG)

Rogers Communications, Inc. - AMEX symbol (NASQ)

Royal Craft Boat - NCIC boat manufacturer code (NCIC)

Worland, WY - Location identifier - FAA (FAAL)