hundred-per-cent zone (one-hundred-per-cent zone)

fifty-per-cent zone in per cent of the range

hundred-per-cent rectangle

all for one and one for all / one for all and all for one

one-cent stamp

Trillions of Operations Per Second / Tera Operations Per Second (TOPS)

oh five-hundred (5:00 am)

oh-dark-hundred

PWM (one wire per channel)

one-way UAV / one-way attack UAV (OWA UAV)

be on one's high horse / get on one's high horse

grid zone / grid-zone

zone standard time (zone time) (ZST)

killing zone / kill zone

grid zone designation / Grid Zone Designator

grey-zone / grey zone (international relations)

no-fire zone / no fire zone

flight restriction zone / flight restricted zone (FRZ)

kilometers per hour (kph)

meters per second (m/s)

miles per hour (mph)

per diem

rounds per man

rounds per minute (r.p.m.)

vehicles per kilometer

probable error in range (PER)

floating-point operation per second (FLOP)

outdoor air intake per person

cargo space per inch of wheel base

weight per HP

actual cubic feet per minute

engine weight per horsepower

standard cubic feet per hour