After you have advanced to the point of being able to copy some QSO's (message exchanges between two Amateur radio stations) you will find that many of the words in the text copied are abbreviations. To help you in learning to copy QSO's a list of commonly used abbreviations is printed below.

ABT	ABOUT	OPR	OPERATOR
ADDR	ADDRESS	OT	OLD TIMER
AGN	AGAIN	PSE	PLEASE
ANT	ANTENNA	R	RECEIVED SOLID OR YES
BCI	BROADCAST INTERFERENCE	RCVR	RECEIVER
BCNU	BE SEEING YOU	RCVD	RECEIVED
BK	BREAK	RFI	RADIO FREQUENCY INTERFERENCE
B4	BEFORE	RPT	REPEAT
CFM	CONFIRM	RTTY	RADIO TELETYPE
CK	CHECK	RX	RECEIVER
CL	CLOSING STATION	SASE	SELF ADDRESSED STAMPED ENVELOPE
CPY	COPY	SIG	SIGNAL
CQ	CALLING ANY STATION	SKED	SCHEDULE
CUL	SEE YOU LATER	SRI	SORRY
DLVD	DELIVERED	SSB	SINGLE SIDE BAND
DN	DOWN	SVC	SERVICE
DR	DEAR	SWL	SHORT-WAVE LISTENER
DX	DISTANCE	TFC	TRAFFIC (MESSAGES)
ES	AND	TFX	TRAFFIC (MESSAGES)
FB	FINE BUSINESS	TKS	THANKS
FER	FOR	TNX	THANKS
FREQ	FREQUENCY	TU	THANK YOU
FRM	FROM	TVI	TELEVISION INTERFERENCE
GA	GO AHEAD OR GOOD AFTERNOON	TX	TRANSMITTER
GB	GOODBYE	UR	YOUR
GE	GOOD EVENING	URS	YOURS
GM	GOOD MORNING	VY	VERY
GN	GOOD NIGHT	VFO	VARIABLE FREQUENCY OSCILLATOR
GND	GROUND	WKD	WORKED
HI HI	LAUGHING	WKG	WORKING
HR	HERE	WL	WILL
HV	HAVE	WPM	WORD PER MINUTE
HW	HOW	WRK	WORK
K	GO AHEAD	WRKED	WORKED
LID	POOR OPERATOR	WX	WEATHER
MSG	MESSAGE	XCRV	TRANSCEIVER
NCS	NET CONTROL STATION	XMTR	TRANSMITTER
NIL	NOTHING	XTAL	CRYSTAL
NR	NUMBER	XYL	WIFE
NW	NOW	YL	YOUNG LADY
OB	OLD BOY	Z	UNIVERSAL COORDINATED TIME (UTC)
OM	OLD MAN	73	BEST REGARDS
OP	OPERATOR	88	LOVE AND KISSES