single-digit midget

six-digit grid

eight-digit grid (coordinate)

midget combat unit

midget sub

midget submarine

midget truck

skill digit

special qualifications digit

single-seat / single seat

discriminating a single target

move in single/in Indian file

single combat

single concertina fence

single defense space

Single Fuel Concept (SFC)

Single Fuel Policy (SFP)

single seat aircraft

single service exercise

single shot grenade launcher

single shots

single strand fence

single-action revolver

single-channel ground and airborne radio system (SINCGARS) radio

single-engine aircraft

single-hull

single-shot

single-sideband

single-stage

single-stage missile / rocket

single-strand, high-strength, spring-steel wire

single barrage (of fire)

single-bucket front-end loader