PRO TIP: If you guys have decent reading skills and want to expand your vocabulary with jargon pertaining to your own hobbies and interests, search for your hobby name in Japanese and add the word “用語集” at the end.

For example, if you wanted terminology used in Japanese calligraphy, you’d want to search for “書道用語集” ;if you wanted something related to gaming, “（テレビ）ゲーム用語集”

用語集 means “glossary” or “terminology list.” It should get you very specific vocabulary that likely won’t show up on something like Jisho. Of course, searching for these definitions in Japanese will yield definitions and explanations of the new vocabulary in Japanese.