Below you can find the This library science term refers to significant words from a book or document that are used to index content Jeopardy Words Answer. The answer to This library science term refers to significant words from a book or document that are used to index content has 8 letters. This clue belongs to the Research category and is part of Jeopardy Word Level 1237. If you scroll near the bottom you will find other clues and answers part of level 1237