RVR
runway visual range
MAA
maximum authorized altitude
MCA
minimum crossing altitude
MEA
minimum enroute altitude
MOCA
minimum obstacle clearance altitude
MRA
minimum reception altitude
MDA
minimum descent altitude
DA or DH
decision altitude or decision height
IAP
instrument approach procedure
REIL
runway end identifier lights
RAIL
runway approach indicator lights
HIRL
high intensity runway lights
MIRL
medium intensity runway lights
RCO
remote communications outlet
ARTCC
air route traffic control center
STAR
standard terminal arrival
SID
standard instrument departure
COP
changeover point