• Merriam, Webster’s Collegiate Dictionary has been an essential reference source. This 12th edition has been thoroughly updated and redesigned to be even more useful and engaging for students, professionals, and everyone who loves words
• Includes over 5,000 new words, reflecting contemporary English and emerging usage trends.
• Expanded entries for the top 500 most frequently searched words, offering deeper clarity and guidance.
• Official dictionary of the Associated Press Stylebook, making it a trusted reference for writers and editors.
• Fascinating word histories and curated lists help readers expand vocabulary and understanding.
• More than 20,000 additional usage examples, including 10,000 new quotations from modern sources.

Stay current with modern language using the Merriam-Webster’s Collegiate Dictionary, 12th Edition, 2025, the updated reference trusted by students, educators, writers, and professionals. This expanded edition includes over 5,000 new words, updated definitions, expert usage guidance, and more than 20,000 additional usage examples, including 10,000 new quotations drawn from contemporary sources. Entries for the 500 most frequently looked-up words have been significantly expanded to provide clearer explanations and deeper context. Fascinating word histories, curated word lists, and refined editorial notes make this edition more readable and visually engaging than ever. Newly added vocabulary reflects the evolving landscape of modern English, including terms like cold brew, heat dome, rizz, farm-to-table, gaslighting, parklet, telework, and doggo. As the official dictionary of the Associated Press Stylebook, this edition remains the authoritative choice for accurate, up-to-date language reference.