Here is a list of common words and sayings used in ham radio.
73 - Good-bye
Amateur TV - A way of broadcasting TV over amateur radioARRL - The national association for amateur radio
ATV - See amateur TVClear - Done talking
NCS - See net control stationQSL card - A card sent from one person to another that certifies a contact.
Net - An organized meeting on the radio. No one is allowed to talk on the net unless net control says they can, like when it is time for check-ins.
Net control station - The person in charge of a net
PTT button/switch - The button/switch you hold down when you talk. PTT stands for Push to Talk
QSY - Switching frequencies
Repeater - A special radio that takes a week signal and repeats it with more power.
Simplex - Talking without a repeaterSquelch - The setting on a radio that minimizes unwanted sound.
Transmitter Power - How much power your radio has. This affects how far your signals go.
UTC time - A universal time (no time zones)
More words to come!