Easy-to-Understand Meanings Help you Communicate Effectively.
- More than 215,000 definitions deliver extensive coverage of the words you need.
- Illustrations and tables aid understanding and offer information at a glance.

Spellings and Pronunciations Help You Write and Speak Accurately.
- Entries present correct spellings for more than 160,000 words and phrases.
- Detailed symbols show most-common pronunciations and acceptable variants.

Usage Guides and Synonym Paragraphs Help you Choose The Right Word.
- Authoritative usage notes and paragraphs answer questions about how words are used.
- Synonym paragraphs go beyond a thesaurus to explain shades of difference among words.

Special Sections Offer Up-to-Date Information to Help Build Your Understanding and Knowledge.
- Special sections include: Biographical Names, Geographical Names, Abbreviations, Foreign Words and Phrases, Signs and Symbols.
- A Handbook of Style provides essential information to improve your writing.

- Preface
- Explanatory Chart
- Explanatory Notes
- The English Language in the Dictionary
- Guide to Pronunciation
- Abbreviations in This Work
- Pronunciation Symbols

A Dictionary of the English Language
- Abbreviations and Symbols for Chemical Elements
- Foreign Words and Phrases
- Biographical Names
- Geographical Names
- Signs and Symbols
- A Handbook of Style

- Updated Annually