Table of selected Morse code abbreviations
AA - All after (used after question mark to request a repetition)
AB - All before (similarly)
ARRL - American Radio Relay League
ABT - About
ADR - Address
AGN - Again
ANT - Antenna
ARND - Around
BCI - Broadcast interference
BCNU - Be seeing you
BK - Break (to pause transmission of a message, say)
BN - All between
BTR - Better
BTU - Back to you
BUG - Semiautomatic mechanical key
BURO - Bureau (usually used in the phrase PLS QSL VIA BURO, "Please send QSL card via my local/national QSL bureau")
B4 - Before
C - Yes; correct
CBA - Callbook address
CFM - Confirm
CK - Check
CL - Clear (I am closing my station)
CLG - . . . Calling
CQ - Calling ... (any station, when nothing is specified)
CS - Callsign
CTL - Control
CUD - Could
CUL - See you later
CUZ - Because
CW - Continuous wave (i.e., radiotelegraph)
CX - Conditions
DE - From (or "this is")
DN - Down
DR - Dear
DSW - Goodbye (Russian: до свидания [Do svidanya])
DX - Distance (sometimes refers to long distance contact), foreign countries
EMRG - Emergency
ENUF - Enough
ERE - Here (more commonly: HR)
ES - And
FB - Fine business (Analogous to "OK")
FCC - Federal Communications Commission
FER - For
FM - From
FREQ - Frequency
FWD - Forward
GA - Good afternoon or Go ahead (depending on context)
GE - Good evening
GG - Going
GL - Good luck
GM - Good morning
GN - Good night
GND - Ground (ground potential)
GUD - Good
GX - Ground
HEE - Humour intended or laughter (often repeated, e.g. HEE HEE)
HI - Humour intended or laughter (originates from American Morse "HO")

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CODES & CIPHERS
Non-FictionCompilation of codes, ciphers & some abbreviations to shorten the message before encrypting them. Learn the easiest way to remember Morse Code too.