Top 10 Free Online English Dictionaries

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A powerful English dictionary will be often helpful for you to learn English, especially when you forget how to speak the word, when you come across a new phrase, or when you want to translate a sentence.

Instead to buy an English dictionary, you can use a free online English dictionary, so that you can save some money and forget where the dictionary is. There are many free English dictionaries online, and among which, below 10 are the most popular and you can use them for free without registration.

1. Wiktionary

Wiktionary has more than 1,000,000 entries with English definitions from over 350 languages. Besides images, definitions, voice pronunciations and example sentences, the search results will also show you the etymology, synonyms, Translations, and some other related terms.

Go to Wiktionary


Besides voice pronunciations, images and definitions, the search results will show you synonyms, sentence examples, acronyms, idioms and quote examples. If there are no matched results, will show you some related results from the website.

Go to

3. Cambridge Dictionary Online

Cambridge Dictionary Online is composed of four dictionaries, they are Cambridge Learner’s Dictionary, Cambridge Dictionary of American English, Cambridge International Dictionary of Idioms and Cambridge International Dictionary of Phrasal Verbs, with which you can search different English words or phrases and get the related definitions. There are voice pronunciations for the definitions of Cambridge Learner’s Dictionary.

Go to Cambridge Dictionary Online

4. is an service. The search results will show you definitions, voice pronunciations, word origin & history, and so on. If there are no results for the words or phrases you search, you will be redirected to for some suggested items. You can look up any words in the dictionary search results by clicking them.

Go to

5. The Free Dictionary

With The Free Dictionary, you can search by words, characters or Text, the search results will show you voice pronunciations, multiple definitions, intransitive verbs, thesaurus and translations. You can translate English words into Greek, French, German, and some other languages.

Go to The Free Dictionary

6. Longman English Dictionary Online

Longman English Dictionary Online is available to search English words and phrases, the search results will show you images, pronunciations, definitions, sample sentences, and related words or phrases. But there is no voice pronunciations.

Go to Longman English Dictionary Online

7. Merriam-Webster Online

You can search Merriam-Webster online dictionary by Dictionary, Thesaurus, Spanish-English or Medical, the dictionary search results will show you the voice pronunciations, the functions, the definitions, and the word histories. You can also search any words in the results by clicking on them.

Go to Merriam-webster Online

8. Wordnik

Wordnik is for you to search English words, besides definitions, example sentences and voice pronunciations, the search results will also show you etymologies, related words, statistics and comments. You can leave a comment after registration.

Go to Wordnik

9. is good for you to search the English words for the definitions in multiple languages, such as Chinese, French, Spanish, etc. And of course, you can also get the English definitions, besides definitions, the search results will also show you the voice pronunciations and compound forms.

Go to

10. Google Dictionary

Google Dictionary is composed of many different language dictionaries, when you search an English word with the English Dictionary, besides voice pronunciation, definitions and example sentences, the search results will also show you related phrases, related languages, usage examples and web definitions.

Go to Google Dictionary

Among the above 10 websites, my favorite is Wiktionary, since you can see the images, hear the pronunciations, and what is more, it is AD free. How about you? Which one is your favorite? Or do you have any other free online English dictionaries? Share with us by adding a comment.

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