Abbreviations and Acronyms abound in aviation. Here is an extensive list that can be used as a reference if terms are not explained in other sections of the course.
AE ..........................................Above aerodrome elevation
AAIR ............... Annual Airworthiness Information Report
ACA ......................................................Arctic Control Area
ACAS .........................Airborne collision avoidance system
ACC .......................................................Area control centre
AD .................................................Airworthiness Directive
ADCUS ...................................................... Advise customs
ADIZ .................................. Air defence identification zone
AFS .............................................Aeronautical fixed service
A/G ................................................................ Air-to-ground
AFTN ............ Aeronautical fixed telecommunications network
AGL ...................................................... Above ground level
AIC .....................................Aeronautical information circular
AIP .............................. Aeronautical Information Publication
AIRAC ..........Aeronautical Information Regulation and Control
AIREP ..................................................................Air report
AIS .................................. Aeronautical information service
AMA ...............................................Area minimum altitude
AME ................................... Aircraft Maintenance Engineer
ANO .................................................Air Navigation Orders
AOE ...........................................................Airport of entry
AOM .........................................Airport Operations Manual
ARCAL ................Aircraft radio control of aerodrome lighting
ARFF ............................... Aircraft Rescue and Firefighting
ASL ...........................................................Above sea level
ATC ......................................................... Air traffic control
ATF .........................................Aerodrome traffic frequency
ATIS ........................ Automatic terminal information service
ATS ........................................................ Air traffic service
ATZ ...............................................Aerodrome Traffic Zone
AWOS ................... Automated weather observation system
BCST .................................................................Broadcast
C .......................................................................... Celsius
C of A ........................................Certificate of airworthiness
C of R .......................................... Certificate of Registration
CG ............................................................ Centre of gravity
CAE ..................................................Control area extension
CAP ..........................................................Canada Air Pilot
CARs ................................... Canadian Aviation Regulations
CARAC..........Canadian Aviation Regulation Advisory Council
CARS ...........................Community aerodrome radio station
CAT .....................................................Clear air turbulence
CAT I, II, III ................................................Category I, II, III
CAVOK ........................................ Ceiling and visibility OK
CB .............................................................Cumulonimbus
CCI ...............................Condition and conformity inspection
CDA ........................................Canadian Domestic Airspace
CFB................................................. Canadian Forces Base
CFS ............................................Canada Flight Supplement
CMC ................................ Canadian Meteorological Centre
CRFI ................................. Canadian Runway Friction Index
CTA ..................................................................Control area
CVFR .........................................................Controlled VFR
CVR ............................................... Cockpit Voice Recorder
CZ ................................................................. Control zone
DAH ................ Designated Airspace Handbook (TP 1820E)
DEW ..................................................Distant early warning
DF ............................................................. Direction finder
DH .............................................................Decision height
DND ................................. Department of National Defence
DOT ..............................................Department of Transport
DR ............................................ Dead reckoning navigation
DRCO .....................Dial-up remote communications outlet
DST .................................................. Daylight saving time
DUATS ..................... Direct User Access Terminal System
DVFR .........................................Defence visual flight rules
E ............................................................................. East
EC .....................................................Environment Canada
EET ............................................... Estimated elapsed time
ELT ......................................Emergency locator transmitter
ERS .......................................Emergency Response Service
EST ........................................................... Estimated Time
ETA ...............................................Estimated time of arrival
ETD .........................................Estimated time of departure
ETE ................................................ Estimated time en route
FAA ............................Federal Aviation Administration (USA)
FAR ............................... Federal Aviation Regulations (USA)
FAX .....................................................................Facsimile
FDR ...................................................Flight Data Recorder
FIR ...............................................Flight information region
FL ...................................................................Flight level
FPM ............................................................Feet per minute
FSS .....................................................Flight service station
GHz ....................................................................Gigahertz
GNSS ............................. Global navigation satellite system
GP ................................................................... Glide path
GPS ............................................Global positioning system
GS ...................................................................Glide slope
H ..............................................................................Hour
Hg ........................................................................Mercury
HSI ....................................... Horizontal Situation Indicator
Hz ..........................................................................Hertz
IAS ...................................................... Indicated airspeed
ICAO ....................... International Civil Aviation Organization
IFR ...................................................Instrument flight rules
ILS .............................................Instrument landing system
IMC.......................... Instrument meteorological conditions
ISA ...............................International Standard Atmosphere
J or JET ..................................................High Level Airway
kg ........................................................................Kilogram
kHz ......................................................................Kilohertz
kt ............................................................................ Knots
lb ..............................................................................Pound
LO ....................................................... Low Enroute Charts
LOP ............................................................ Line of Position
M or Mag .............................................................Magnetic
MA ...........................................................Missed approach
MANOT .........................................Missing aircraft notice
mbs ....................................................................Millibars
MEDEVAC .................................Medical evacuation flight
MF .................................................Mandatory frequency
MHz ..............................................................Megahertz
MLS ........................................Microwave landing system
MOA .............................................Military operations area
MOCA ........................Minimum obstacle clearance altitude
mph ............................................................Miles per hour
MTCA ....................................Military terminal control area
N ...........................................................................North
NAVAID ...................................................... Navigation aid
NCA .................................................Northern Control Area
NDA ........................................Northern Domestic Airspace
NDB ...............................................Non-directional beacon
NM .......................................................... Nautical mile no
NORDO .................................................................No radio
NWS ...............................................North Warning System
OAT ...............................................Outside air temperature
OBST .................................................................Obstacle
ORE .............................................Obstacle-rich environment
OTT ................................................................ Over-the-top
PAC ....................................................................... Pacific
PIREP .................................................. Pilot weather report
PPR ............................................ Prior permission required
PSI ................................................. Pounds per square inch
PVT ................................................................. Private use
RAAS ..........................Remote aerodrome advisory service
RCC ....................................... Rescue co-ordination centre
RCMP ..............................Royal Canadian Mounted Police
RCO ....................................Remote communications outlet
RCR .............................................Runway condition report
RONLY ..........................................................Receiver only
RSC .............................................Runway surface condition
RTF ............................................ Radiotelephony frequency
S ...............................................................................South
SAR ........................................................Search and rescue
SCA .................................................. Southern Control Area
SDA ....................................... Southern Domestic Airspace
SELCAL ........................................ Selective calling system
SID ...................................... Standard instrument departure
SIGMET ..................... Significant meteorological information
SM .................................................................Statute mile
STOL aircraft .....................Short takeoff and landing aircraft
SVFR ...................................................Special VFR flight
T ..............................................................................True
TA ........................................................... Traffic advisory
TACAN .......................................Tactical air navigation aid
TAS ............................................................True airspeed
TC ........................................................Transport Canada
TCA ................................................Terminal control area
TCAS ..............Traffic alert and collision avoidance system
TCU ..................................................Terminal control unit
TP .........................................Transport Canada publication
TSB ......................... Transportation Safety Board of Canada
TSO ........................................... Technical Standard Order
TWR .............................................................Control tower
UFN ......................................................Until further notice
UNICOM .....................................Universal communications
UTC ........................................ Co-ordinated Universal Time
VAS.............................................. Vehicle advisory service
VFR ....................................................... Visual flight rules
VHF ....................................................Very high frequency
VLF ..................................................... Very low frequency
VMC ................................Visual meteorological conditions
VNAP ........................Vertical Noise Abatement Procedure
VNC ...................................................VFR navigation chart
VOLMET .........................In-flight meteorological information
VOR ..........................................VHF omnidirectional range
VORTAC ......................... Combination of VOR and TACAN
VTA .............................................. VFR terminal area chart
VTOL aircraft ...................Vertical takeoff and landing aircraft
VTPC .................................VFR Terminal Procedures Chart
W ............................................................................West
WAC .............................................World aeronautical chart
WP .....................................................................Waypoint
WS ...................................................................Wind shear
zulu (Z) ..................................... Co-ordinated Universal Time