grou - high
- guard magnet
- guard panel
- guard pin
- guard plate
- guard rail
- guard receiver
- guard relay
- guard retainer
- guard retainer bolt
- guard ring
- guard shield
- guard ship
- guard signal
- guard sleeper
- guard space
- guard timber
- guard time
- guard track
- guard valve
- guard's accommodation
- guard's valve
- guard(ed electrode) log
- guard(ed electrode) log
- guard-ring jumper
- guard-ring structure
- guardband
- guarded crossing
- guarded current-flow system
- guarding
- guardrail
- guayule
- gudgeon
- gudgeon pin
- gudgeon pin boss
- guess rope
- guess value
- guess-warp [guest-warp] boom
- guest-host
- guest-host indicator
- guest-host LCD