GCA

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

• anti-federalist
• anti-federalists
• anti-feedant
• anti-flash
• antifouling
• antifoulings
• antifreeze
• antifreezes
• antifriction
• antifungal
• antifungals
• anti-g
• anti-Gallican
• anti-Gallicanism
• antigay
• antigen
• antigenic
• antigenically
• antigenic determinant
• antigenic determinants
• antigenic variation
• antigenic variations
• antigens
• antigropeloes
• antigropelos