Writing & StyleStyle guide

Index Formatting

An index is a curated retrieval tool rather than a duplicate table of contents. Word can mark entries and generate an alphabetized index with page references, but editorial choices about terms, subentries and cross-references still require human judgment.

Quick answer

An index organizes selected terms and topics alphabetically and points readers to their locations; mark meaningful entries consistently and use cross-references only where they help retrieval.

Key details

Core Issuebuilding and formatting an alphabetical subject index with entries, subentries, cross-references and page references
Registerbooks, manuals, reports and other long-form reference documents

Important caveats

Tool Boundary

Word can sort marked entries and generate page references automatically; exact index style and depth depend on the publication or house style.

Further guidance

Cross References

Use index cross-references to redirect readers between synonymous or related entry terms when that improves findability.

Entry Design

Index concepts readers are likely to seek, using consistent main entries and subentries rather than indexing every repeated word.

Sources and evidence

Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.

  1. Create and update an index — Microsoft Support (opens in a new tab)Microsoft Support · Index entries, cross-references, sorting and page-reference generation

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