gian - guar
- groove angle
- groove depth
- groove deviation
- groove guard
- groove jump
- groove misnomer
- groove number
- groove quantization
- groove selection
- groove shape
- groove speed
- groove undulation
- groove width
- grooved pin
- grooved reflector
- grope
- groper
- gross audience
- gross geometry
- gross-level model
- gross-motion switch
- Grossberg
- Grossberg layer
- ground
- ground absorption
- ground albedo
- ground antenna
- ground backscattering
- ground based antenna
- ground beacon
- ground bus
- ground capacitance
- ground check
- ground clamp
- ground clutter
- ground communications equipment
- ground conduit
- ground connection
- ground connector
- ground control
