directed reference flight

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

directed

directed-energy munition (demon)

directed-energy weapons (DEW)

high-intensity directed acoustics

radar-directed searchlight

directed freight

vector directed into the point with coordinates

directed charge IED

well-directed fire

radar-directed

directed energy (DE)

directed-energy warfare (DEW)

flight restriction zone / flight restricted zone (FRZ)

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

reference number (order / message / report)

stabilization reference package (SRP)

target reference point (TRP)

terms of reference (TOR)

World Geographic Reference System (WGRS); georef