Indexing elements The indexing elements provide content that a processor can use to generate indexes. index-seeAn <index-see> element directs the reader to an index entry that the reader should use instead of the current one.index-see-alsoAn <index-see-also> element directs the reader to an index entry that the reader can use in addition to the current one.indextermAn <indexterm> element contains content that is used to produce an index entry. Nested <indexterm> elements create multi-level indexes.Parent topic: Topic elements