What does GYR stand for?

Gary Blair Boat Builders, Santa Cruz, CA - Manufacturer code for watercraft hull identification number (USCG)

Gigayear - A billion years

Goodyear (SAUS)

Goodyear, AZ - Location identifier - FAA (FAAL)

Guarayu - Language code (ETLW)

Gyrafrance - France - ICAO designator (FAAC)

Gyration (ABBR)

Gyratory (SAUS)

Gyrojet - NCIC firearms make code (NCIC)

Gyrus (ABBR)