GCA

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

• rat-a-tat
• ratatouille
• ratatouilles
• ratbag
• ratbags
• ratbite fever
• ratbite fevers
• rat-catcher
• rat-catchers
• rat-catching
• ratch
• pitifully
• pitifulness
• pitifulnesses
• pitiless
• pitilessly
• pitilessness
• pitilessnesses
• pitman
• pitmen
• pit-mirk
• piton
• pitons
• Pitot tube
• Pitot tubes