unmanned semi-rigid airship

semi-rigid - rigid inflatable boat (RIB)

unmanned non-rigid airship

unmanned rigid airship

non-rigid airship

rigid airship

semiballistic / semi ballistic / semi-ballistic / quasiballistic

unmanned airship

airship / blimp / dirigible

freight-carrying airship

airship

drone airship

rigid tow bar

rigid bearing

rigid removable tank

rigid pavement

rigid vortex

boom vang (rigid)

armour piercing, composite rigid (APCR)

armour-piercing, composite non-rigid (APCNR)

composite rigid shot

semi-automatic pistol (automatic pistol)

semi-active homing guidance system

semi-active laser (homing) (SAL/H)

semi-combustible cartridge

semi-enclosed sea

semi-portable carriage

semi-circular deviation

selective semi or full automatic fire

semi or full automatic fire

semi-active homing

M16 (semi-automatic rifle)

semi-automatic command to line of sight (SACLOS)