GCA

1. Ground control (or controlled) approach system, or ground control apparatus (aeronautics)
2. Guatemala, Central America (IVR)

• coal-beds
• coal-black
• coal-box
• coal-boxes
• coal-brass
• coal-brasses
• coal bunker
• coal bunkers
• coal cellar
• coal cellars
• coal-cutter
• coal-cutters
• coal dust
• coaled
• coaler
• coalers
• coalesce
• coalesced
• coalescence
• coalescences
• coalescent
• coalesces
• coalescing
• coalface
• coalfaces