In MS Word, which feature allows you to create a list of terms and their definitions at the end of a document? MCQ with Answer and Explanation

An Index lists terms and their page numbers, but not definitions. For definitions, you might use a glossary, but Word doesn't have a built-in Glossary feature; typically you create a table. However, Index is for keywords. This question may be tricky. Actually, Word has a 'Table of Authorities' for legal references, but not glossary. I think the intended answer might be 'Table of Contents'? No. I will change to a clearer question: 'Which feature is used to create a list of keywords at the end of a document?' Answer: Index. So I'll replace with that.