The Professional



Copyright , 1982 by the ALOA Sponsored National Task Group for Certified Training Programs, Master Keying Study Group
Copyright , 1983 by the ALOA Sponsored National Task Group for Certified Training Programs, Master Keying Study Group
Revised June, 1984
Revised April, 1987
Copyright , 1996 by the Lock Industry Standards and Training Council, Master Keying
Study Group
Copyright , 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2012, 2014, 2017, 2019, 2021 by the Lock Industry Standards and Training Council
Designations and Titles are addressed in the Locksmith Dictionary and may also be found in a separate document here.
LIST Council members have included: 
Jerome Andrews
Jimmy Benvenutti
Breck H. Camp
*Joe Cortie
Ken Ehrenreich
*Dorothy Friend
Ralp Forest-Ball
Kristine Gallo
A.J. Hoffman
Wiegand Jensen
Mike Kirkpatrick
Gordon S. Morris
Brian O'Dowd
Jon Payne
Sharon Smith
Roger Weitzenkamp
*Vaughan Armstrong
*Greg Brandt
*Casey Camper
*Bob DeWeese
*Billy B. Edwards Jr.
G.L. Finch
Ray Hern
*John Hubel
*David J. Killip
*William Lynk
Dan Nicholson
Don O'Shall
Lloyd Seliber
John Truempy
Jym Welch

All rights reserved.

Permission is hereby granted to reprint terms and definitions contained herein with the following stipulations:

1. Any term and its definition are to be reprinted in their entirety.
2. Credit is to be given to the Lock Industry Standards and Training (LIST) Council.

In 1982 the LIST Council’s predecessor released to the industry The Professional Glossary of Terms Relating to Cylinders, Keys and Master Keying. The Associated Locksmiths of America, Inc. was the first to publish and distribute it. The definitions and terminology in the glossary have since been adopted by most of the manufacturers, publications and associations as our industry standard and many manufacturers offer a printed version as part of their factory training.

The LIST Council has been asked by ALOA and others to complete what would amount to a Dictionary for Locksmiths. We have begun that work and are pleased to submit the first installment here. More will be added as it is cleared via peer review.

When making a definition of a term, we applied the following rules to the term:

1. Is the term listed in "Webster"?
2. Is the definition there the same meaning used in our industry?

To us, "Webster", means a typical pocket dictionary, which could be obtained easily and on short notice from any grocery store, which has a pocket book display. If the answer to either of the questions above was no, we felt the term must be in our dictionary, otherwise it was common usage which anyone could define.

Because there is generally more than one term in use from one geographic area to another, we established the most popular term that most closely describes what it means as the "primary" term to be defined, unless it has different opposing definitions. All other terms with the same meaning become secondary terms and are only listed in the appendix. With that established, the definitions have to meet the following rules:

1. It must describe the subject of the term without graphics.
2. It must describe ONLY the subject of the term.
3. The term should not be used in the definition.

If you have a technical objection to any definition, please bring it to the attention of the publisher or a member of the LIST Council, (current members noted with an * asterisk), for review.  If you would like a PDF copy of the Locksmith Dictionary it is available for download by right clicking here.

The following is the combined work of these two groups.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Appendix
Peer Review

These pages last updated Marc, 2021

This listing of the Locksmith Dictionary is courtesy of Back to Locksoft Home Page