GCA

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

• gemmeries
• gemmery
• gemmier
• gemmiest
• gemmiferous
• gemming
• gemmiparous
• gemmological
• gemmologies
• gemmologist
• gemmologists
• gemmology
• gemmulation
• gemmulations
• gemmule
• gemmules
• gemmy
• gemological
• gemologies
• gemologist
• gemologists
• gemology
• gemony
• gemot
• gemots