33 | Used as a greeting between YLs (as half of an 88)
44 | Hand shake, half of 88. Often used in Flora and Fauna connections
55 | Wishing success (originates from German "Viele Punkte" -- Many dots/points)
5NN | 599 (RST)
72 | Best Wishes QRP (Low Power) often used by low power station operators (5W or less)
73 | Best Regards
77 | Long Live CW (Morse Code), wishing you many happy CW contacts
88 | Love and kisses
99 | Get lost
AA | All after
AB | All before
ABT | About
ADBB | Addressee
ADEE | Addressee
ADR | Address
AGN | Again
AM | Amplitude Modulation
ANR | Another
ANT | Antenna
AR | Over, end of message
ARND | Around
AS | Wait, Please stand by
B | More (another mag to follow)
B4 | Before
BCI | Broadcast Interference
BCL | Broadcast Listener
BCNU | Be Seeing You
BK | Break, Break in (handing control back to the other station, normally without all the callsigns; like "Over" on SSB)
BN | All between; Been
BT | Separation (break) between addr & text; between txt & signature
BTR | Better
BTU | Back To You
BUG | Semi-Automatic key
BURO | Bureau ( "Please send QSL card via my local/national QSL bureau")
C | Yes; Correct
CBA | Callbook address
CFM | Confirm; I confirm
CIAO | Italian for Bye bye! When you QSO an Italian station, he'll often say this at the end!
CK | Check
CKT | Circuit
CL | I am closing my station; Call
CLBK | Callbook
CLD | Called
CLG | Calling
CNT | Cant
CONDX | Conditions
COS | Because
CPI/CPY | Copy (example, HW CPI? How well can you hear my signals?)
CPY | copy
CQ | A general call for other stations to talk to you
CS | Callsign
CTL | Control
CU | See You
CUD | Could
CUL | See you later
CUM | Come
CUZ | Because
CW | Continuous wave
CX | Conditions
DA | day
DE | From; this is (identification)
DIFF | Difference
DLD | Delivered
DLD, | Delivered
DLVD | Delivered
DN | Down
DR | Dear
DX | Long distance contact, or rare station (or also pleasantly, long years of operating ahead of you!)
E N N | 599 (RST)
EL | Element
EMRG | Emergency
EN | 59 (= Fine)
EN EN | 59 (= Fine)
ENN | 599 (RST)
ENUF | Enough
ES | And
FB | Fine Business, excellent
FER | For
FM | Frequency Modulation
FRE | frequency
FREQ | Frequency
FWD | Forward
GA | Good Afternoon, Go ahead
GB | Good bye, God Bless
GD | Good
GE | Good evening
GESS | Guess
GG | Going
GL | Good luck
GM | Good morning
GN | Good night
GND | Ground
GUD | Good
GV | Give
GX | Ground
HB | Homebrew (you built it yourself)
HEE | Humour intended or laughter - often repeated twice i.e. HEE HEE
HH | Error in sending
HI HI | Laughter
HI | Laughter (for example HI HI) | High
HPE | Hope
HR | Here, Hear
HV | Have
HW | How (frequent example: HW? means, how well can you hear my signals? What's my report?)
II | I say again
IMI | Repeat; I say again
IMP | Impedance
K | go ahead
KN | Over; only the station named should respond (e.g. W7PTH DE W1AW KN)
LID | A poor operator
LNG | long
LOTW | Logbook of the World
LTR | Later
LVG | Leaving
MA | Milliamperes
MA, | Millamperes
MH | Meters high (antenna height)
MILLS | Milliamperes
MILS | Millamperes
MNI | Many
MSG | Message; Prefix to radiogram
N | Negative, incorrect, no more
NCS | Net Control Station
ND | Nothing Doing
NIL | Nothing; I have nothing for you
NM | No more
NR | Near | Number
NW | Now; I resume transmission
NX | Noise; noisy
OB | Old boy
OC | Old chap
OK | Okay
OM | Old Man (term of endearment for the operator at the other end)
OO | Official observer
OOTC | Old old timers club (org. for those whose first 2-way radio contact occurred 40+ years ago)
OP | Operator; often used instead of "Name"
OPR | Operator
OT | Old timer; Old top
OTC | Old timers club (ARRL-sponsored org. for radio amateurs first licensed 20 or more years ago)
PBL | Preamble (first part of msg)
PKG | Package
PLS | Please
PLS/PSE | Please
PSB | Please
PSE | Please
PT | Point
PWR | Power
PX | Press
Q | 
QCWA | Quarter Century Wireless Association (org. for radio amateurs licensed for 25 or more years)
QRA | What is the name (or call sign) of your station? | The name (or call sign) of my station is ...
QRB | How far are you from my station? | The distance between our stations is ... nautical miles (or km).
QRD | Where are you bound and where are you coming from? | I am bound ___ from ___.
QRG | Will you tell me my exact frequency (or that of ...)? | Your exact frequency (or that of ... ) is ... kHz (or MHz).
QRH | Does my frequency vary? | Your frequency varies.
QRI | How is the tone of my transmission? | The tone of your transmission is (1: good, 2: variable 3: bad)
QRJ | Are you receiving me badly? | I cannot receive you, your signal is too weak.
QRK | What is the intelligibility of my signals? | The intelligibility of your signals is ___ (1-Bad, 2-Poor, 3-Fair, 4-Good, 5-Excellent.)
QRL | Are you busy? | I am busy. (or I am busy with ... ) Please do not interfere.
QRM | Is my transmission being interfered with? | Your transmission is being interfered with ___ (1-Nil, 2-Slightly, 3-Moderately, 4-Severly, 5-Extremely.)
QRN | Are you troubled by static noise? | I am troubled by static noise.
QRO | Shall I increase transmit power? | Please increase transmit power.
QRP | Shall I decrease transmit power? | Please decrease transmit power.
QRQ | Shall I send faster? | Please send faster (... words per minute).
QRR | Are you ready for automatic operation? | I am ready for automatic operation. Send at ___ WPM.
QRS | Shall I send more slowly? | Please send more slowly (... words per minute).
QRT | Shall I cease or suspend operation? | I am suspending operation.
QRU | Have you anything for me? | I have nothing for you.
QRV | Are you ready? | I am ready.
QRW | Shall I inform ___ that you are calling? | Please inform ___ that I am calling.
QRX | Shall I standby? | When will you call me again?
QRY | What is my turn? | Your turn is numbered ___.
QRZ | Who is calling me? | You are being called by ... (on ... kHz (or MHz)).
QSA | What is the strength of my signals (or those of ... )? | The strength of your signals (or those of ...) is ... (1: very weak .. 5: very strong).
QSB | Are my signals fading? | Your signals are fading.
QSD | Is my keying defective? | Your keying is defective.
QSG | Shall I send ___ messages at a time? | Send ___ messages at a time.
QSJ | What is the charge to be collected per word to ___ including your international telegraph charge? | The charge to be collected per word is ___ including my international telegraph charge.
QSK | Can you hear me between your signals (while transmitting), and if so can I break in on your transmission? | I can hear you between my signals (while transmitting); break in on my transmission.
QSL | Can you acknowledge receipt? | I am acknowledging receipt.
QSM | Shall I repeat the last telegram (message) which I sent you, or some previous telegram (message)? | Repeat the last telegram (message) which you sent me (or telegram(s) (message(s)) numbers(s) ...).
QSN | Did you hear me (or ...) on ... kHz (or MHz)? | I did hear you (or ...) on ... kHz (or MHz).
QSO | Can you communicate with ... direct or by relay? | I can communicate with ... direct (or by relay through ...).
QSP | Will you relay a message to ...? | I will relay a message to ... .
QSQ | Have you a doctor on board? | (or is ___ on board?) I have a doctor on board (or ___ is on board.)
QSS | What working frequency will you use? | I will use ... kHz (or MHz).
QSU | Shall I send or reply on this frequency (or on ... kHz (or MHz))? | Please send or reply on this frequency (or on ... kHz (or MHz)).
QSV | Shall I send a series of "V" on this frequency (or on ... kHz (or MHz))? | Please send a series of "V" on this frequency (or on ... kHz (or MHz)).
QSW | Will you send on this frequency? | I am going to send on this frequency.
QSX | Will you listen to ... on ... kHz (or MHz)? | I am listening to ... on ... kHz (or MHz).
QSY | Shall I change transmission frequency (to ... kHz (or MHz))? | Please change transmission frequency (to ... kHz (or MHz)).
QSZ | Shall I send each word or group more than once? | Send each word or group twice (or ... times).
QTA | Shall I cancel message number ___? | Cancel message number ___.
QTB | Do you agree with my counting of words? | I do not agree with your counting of words. I will repeat the first letter or digit of each word or group.
QTC | How many telegrams (messages) have you to send? | I have ... telegrams (messages) for you (or for ...).
QTE | What is my true bearing from you? | Your true bearing from me is ___ degrees.
QTG | Will you send two dashes of 10 seconds each followed by your call sign? | I am going to send two dashes of 10 seconds each followed by my call sign.
QTH | What is your position in latitude and longitude (or according to any other indication)? | My position is ... latitude, ... longitude.
QTI | What is your true track? | My true track is ___ degrees.
QTL | What is your true heading? | My true heading is ___ degrees.
QTN | At what time did you depart from ___? | I departed from ___ at ___ hours.
QTO | Have you left dock (or port)? | I have left dock (or port).
QTP | Are you going to enter dock (or port)? | I am goin gto enter dock (or port.)
QTQ | Can you communicate with my station by meains of the International Code of Signals? | I am going to communicate with your staion by means of the International Code of Signals.
QTR | What is the correct time? | The correct time is ... hours.
QTS | Will you send your call sign for ___ minutes so that your frequency can be measured? | I will send my call sign for ___ minutes so that my frequency may be measured.
QTU | What are the hours during which your station is open? | My station is open from ___ hours to ___ hours.
QTV | Shall I stand guard for you on the frequency of ___ kHz? | Stand guard for me on the frequency of ___ kHz.
QTX | Will you keep your station open for further communication with me? | I will keep my station open for further communication with you.
QUA | Have you news of ___? | I have news of ___.
QUB | Can you give me information concering visibility, height of cluds, direction and velocity of ground wind at ___? | Here is the information you requested...
QUC | What is the number of the last message you received from me? | The number of the last message I received from you is ___.
QUD | Have you received the urgency signal sent by ___? | I have received the urgency signal sent by ___.
QUF | Have you received the distress signal sent by ___? | I have received the distress signal sent by ___.
QUG | Will you be forced to land? | I am forced to land immediately.
QUH | Will you give me the present barometric pressure? | The present barometric pressure is ___ (units).
R | "Roger", "Message Received", Correct | Are
RC | Ragchew
RCD | Received
RCVR | Receiver
REF | Refer to; Reference
RFI | Radio-frequency interference
RIG | Station equipment
RPI | Radio frequency interference
RPRT | Report
RPT | Repeat or report (depending on context)
RR | RR Message Received or Correct, or Roger
RST | Signal report (Readability, Strength, Tone)
RTTY | Radio teletype
RX | Receiver
SAE | Self-addressed envelope
SASE | Self-addressed, stamped envelope
SBD | Said
SED | Said
SEZ | Says
SFR | So far (proword)
SGD | Signed
SIG | Signature; Signal
SIG/SIGS | Signal/Signals
SIGS | signal
SINE | Operator\'s personal initials or nickname
SK | Out (prosign), end of contact | Silent Key (a deceased radio amateur)
SKED | Schedule
SN | Soon
SNR | Signal-to-noise ratio
SRI | Sorry
SS | Sweepstakes
SSB | Single Side Band
STN | station
SUM | Some
SVC | Service; Prefix to service message
T | Zero
T/R | Transmit/Receive
TEMP | Temperature
TFC | Traffic
TKS | thanks
TKS, | Thanks
TMW | Tomorrow
TNX | Thanks
TNX/TKS | Thanks
TR | Transmit
TRE | There
TRIX | Tricks
TT | That
TTS | That is
TU | Thank you
TVI | Television interference
TX | Transmitter
TXRX | Transceiver, transmitter + receiver
TXT | Text
TXVR | Transceiver
U | you
UFB | Uber Fine Business, Ultra Fine Business... in other words, EXCELLENT!
UR | Your: You're
URS | Yours
VFB | Very Fine Business
VFO | Variable Frequency Oscillator
VPO | Variable Frequency Oscillator
VX | Voice; phone + French "Vieux" (Old Man as per English "OM")
VY | Very
W | Watts
WA | Word after
WB | Word before
WD | Word
WDS | Words
WID | With
WKD | Worked
WKG | Working
WL | Well; Will
WPM | Words Per Minute
WRD | Word
WT | watt
WUD | Would
WX | Weather
XCVR | Transceiver
XMTR | Transmitter
XTAL | Crystal
XTL | Crystal
XYL | Wife
XYLYF | Wife
YF | Wife
YL | Young Lady, Girlfriend
YR | Your or You\'re (depending on context) Alt: UR
Z | Zulu time i.e. UTC (GMT)
ZX | Zero beat