air - anti
- antenna tilt
- antenna tower
- antenna tracking
- antenna trap
- antenna tuning inductor
- antenna wire
- antenna zoning
- antenna-feed impedance
- antenna-to-antenna isolation
- antenna-to-medium coupling loss
- antennafier
- anteroom
- anthelion
- anthracene
- anthracite
- anthracite culm
- anthracite fines
- anthracite region
- anthracitic coal
- anthrafine