American English Dictionary for ESL, EFL, and TOEFL Students

Welcome to Merriam-Webster's English Learner's Online Dictionary

Blog Blog

Ask the Editors

February 05, 2010

TOPIC: "Whether" and "If"

Peter Sokolowski

A reader asks when to use "whether" and when to use "if." Editor Kory Stamper...


Continue...

Learn Learn

Learner's Word of the Day

February 08, 2010
chuck
Pronounced: /ˈtʃʌk/Listen to audio
: to throw or toss (something)...

Continue...

Practice Practice

  1. My Learner's Dictionary
  2. 3,000 Words—you need to know!
  3. Perfect Pronunciation Exercises

Shop Shop

  1. Buy the Learner's Dictionary
  2. Shop for more books from Merriam-Webster

Help Help

  1. Contact Us
  2. Site Help
  3. Language Help
  4. Using the Learner's Dictionary

Download Downloads

  1. Learner's Dictionary Search Boxes New
  2. FREE download available for book purchasers:
Download the Learner's Dictionary
Learn about the book...

Merriam-Webster's

Advanced Learner's Dictionary

It's here! The first learner's dictionary from America's language experts is the perfect resource for teachers and students of English as a second language, with over 100,000 words and phrases, loads of drawings and illustrations, and the most example sentences of any learner's dictionary. It also includes a free eBook download. Learn more here.

Browse the Learner's Dictionary

  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  1. Merriam-Webster OnLine
  2. Word Central
  3. Spell It!
  4. Merriam-Webster Unabridged
  5. Word.com