This preprint specifies supplementary material and the results of a comparative, syntactic, and semantic study of terms for three software testing glossaries. The three software testing glossaries are: the ISO 29119-1, Concepts and definitions standard, the Standard Glossary of Terms used in Software Testing (version 3.5) by the International Software Testing Qualifications Board (ISTQB), and the glossary provided by the Test Maturity Model integration (TMMi) Foundation. First, we categorized the glossaries terms by analyzing their given semantics into 8 categories, namely: test project, strategy, or organization; testing process or activity; test goal, requirement, or entity; test work product; testing method or technique; testing agent, role, or tool; other terms somewhat related to test; and terms beyond the testing domain. Also, we designed a set of metrics that serve to extract and produce data that support the analysis of syntactic and semantic similarities and discrepancies, and ultimately the analysis of consistencies and inconsistencies between glossaries' terms. It is important to remark that in this work the whole analysis is focused on glossaries terms whose names end with the word "testing".