second order effect

wing-in-ground-effect amphibious craft; ground-effect vehicle (GEV); wing-in-ground-effect (WIG); ground-effect craft; wingship; flarecraft; ekranoplan

meters per second (m/s)

second in command (2i/c , 2IC)

second lieutenant

floating-point operation per second (FLOP)

captain second rank

fuel flow (kilogram/second)

centimeter-gram-second (CGS)

meter-kilogram-second-ampere system (MKSA)

meters per second (MPS)

second cause

second mean chord

additional second lieutenant

second-trip echo

second wave attack theory

second classman

second commander

second for service

second echelon maintenance

second element

second John

second level rater

second line

second line of defence

second strike force

second theater

second-in-command

second-line aircraft

second-mission aircraft

second-strike strategy

second-strike weapon

split-second firepower