six-figure reference

attitude-and-heading reference system / attitude and heading reference system (AHRS)

figure

six-digit grid

REMF (rear echelon mother figure)

watch your six

cross-country six-wheeler

six-wheeler

figure target

head-and-shoulders figure target

figure-of-eight driver-training track

figure of merit of a rotor

six-component balance

figure eight knot

Ordnance Quick Firing 6-pounder / QF6-pounder / six-pounder

six o'clock aiming point

six- o'clock holding

six-shooter

code figure

figure 8 flying

grid reference box

grid reference system

guidance reference system

gyroscopic reference unit (GRU)

lay reference number

map reference

map reference code

military grid reference system (MGRS)

NATO Master Cross Reference List (NMCRL) (logistics)

numbered reference position system

reference

reference diversion point

reference data