The wiki has a search function, but returns unwanted items. jAlbum has contextual help, but it only takes you to the page containing the information wanted. To help find specific information there is now a wiki Glossary page, https://jalbum.net/help/en/JAlbum/Glossary It covers many commonly used words.

That page has links to further pages, each one covering information beginning with each letter of the alphabet. If you can’t find a link to what you are looking for post a request to include the item in the wiki