Here's three of several Ham Radio Slang and regularly used terms websites.

Ham Radio Slang, Abbreviations and On-Air Jargon

Amateur radio has accumulated a rich vocabulary over more than a century of operation. Some terms come from the telegraph era, some from military radio, some from the early days of broadcasting, and some are purely home-grown ham culture. This reference covers the slang, abbreviations and jargon every ham should know — from the meaning of 73 to what an Elmer is.

Ham Radio Glossary and Lingo: From Basic Q-Codes to Advanced Jargon