reference point

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

reference diversion point

target reference point (TRP)

fictitious reference point

real reference point

aerodrome reference point (ARP)

reference noise measurement point

take-off reference noise measurement point

linear reference point

visual reference point

pin-point reference

ballistic impact point (BIP) / ground (predicted) impact point (PIP)

target approach point; initial point (IP)

triangulation point (trig point)

objective rally point / objective rallying point

point-to-point communication

point-to-point flight

near-side rally point / near side rally point

far-side rally point / far side rally point

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 data

reference number (order / message / report)