gian - guar
- ground control center
- ground control equipment
- ground control radar
- ground controller
- ground current
- ground data equipment
- ground detector
- ground doublet
- ground echoes
- ground electrode
- ground electronics engineering
- Ground Electronics Engineering Installation Agency
- ground electrooptical deep-space surveillance system
- ground environment
- ground fault
- ground fault protection
- ground flutter
- ground glass
- ground guidance
- ground guidance equipment
- ground guidance system
- ground indicator
- ground information processing system
- ground instrumentation equipment
- ground interrogator
- ground isolation
- ground leak
- ground level
- ground loop
- ground noise
- ground outlet
- ground plane
- ground plate
- ground plug
- ground protection
- ground protective relay
- ground proximity warning system
- ground radar
- ground range
- ground ray
