The world of SEO can be full of terms that are hard to rember. This is one great guide to get a quick run down on the most important terms.
https://searchengineland.com/the-small-business-owners-guide-to-conquering-seo-the-glossary-300890
Whilst sheer exposure to a glossary won’t help you learn it does give a nice reference point when talking to those in the industry. Sometimes either intentionally or unintentionally experts use these terms and confuse clients. The truth is SEO isn’t really that difficult to understand. Here’s a great starters guide by Google https://support.google.com/webmasters/answer/7451184?hl=en
What’s diffcult about SEO is the fact that it’s always changing and search engines aren’t going to tell you the exact factors that their algorithms take into account.