firs - form
- FIRST
- first
- first aggregate then infer
- first anode
- first audio stage
- first breakdown
- first breakdown voltage
- first Brillouin zone
- first coupler
- first critical field
- first crossover voltage
- first decile
- first detector
- first field
- first Fresnel zone
- first generation computer
- first generation robot
- first generation tape
- first generation videotape
- first guess
- first harmonic
- first infer then aggregate
- first meridian
- first normal form
- first order inferior
- first order statistics
- first order subscript
- first order superior
- first order superscript
- first party
- first percentile
- first person combat
- first pinacoid
- first quadrant
- first selector
- first sound
- first Townsend discharge
- first vacuum
- first variation
- first-generation language
