Don't fill up the glossary with words or phrases that are not used in the manual. Make sure that all terms defined are used within the manual. You may have written a procedure that gets removed in a later edit. Don't forget to remove the defined terms as well. Do define all acronyms.
Nothing can be more daunting to a user than to be faced with a page of acronyms and no definitions.
That's as bad as walking into a room after the punch line of a joke and everyone laughing except you. Now that we've detailed how to create a usable glossary, we'll look at how to develop a comprehensive Index. Used under License.