Top 4 | Best English Online Dictionaries

Online English dictionaries are absolutely essential for learning English.

Unlike heavy paper dictionaries, online dictionaries are very convenient as you can search for words anytime and anywhere. I always use them every single day!

In this article, you will find free and useful online English dictionaries available in multiple languages: English, Spanish, French, Portuguese, German, Italian, Hindi, Chinese, etc.

I hope you find the best dictionary to enhance your future English studies!

目次

1. Collins Dictionary

Collins Dictionary offers translations between multiple languages and English. If your first language is one of the following and your English proficiency isn’t high enough to fully understand explanations in English, like those in the Oxford Learner’s Dictionaries – explained in the 3rd section, then this is the dictionary for you!

The available languages are:

– Spanish
– French
– Italian
– German
– Portuguese
– Mandarin Chinese
– Hindi

Significado de beautiful en español, Collins Dictionary
Meaning of "beautiful" in Spanish | you can choose your first languge

Another great feature of the Collins Dictionary is its extensive synonyms list. It helps you avoid overusing the same words and enhances your vocabulary, making your writing more dynamic and varied.

Sinónimo de beautiful, Collins Dictionary
Synonyms of "beautiful"

  ✔️ Pros    

  • Available in multiple languages
  • Extensive list of synonyms
  • Provides phrases and example sentences

✖ Cons 

  • NOT very easy to read due to color scheme
  • Fewer example sentences compared to other dictionaries

Pros

Available in multiple languages

Extensive list of synonyms

Provides phrases and example sentences

Cons

NOT very easy to read due to color scheme

Fewer example sentences compared to other dictionaries

Longman Dictionary of Contemporary English is one of my favorite dictionaries, offering multiple features to enhance your English learning and increase your proficiency.

Available in 3 languagesJapanese, Spanish, and Korean—this dictionary is especially useful if you speak any of these. 

If you don’t speak these languages, don’t worry! The Longman Dictionary is an English-English dictionary, making it an excellent choice for those with an intermediate or higher level of English. This is the dictionary you need!

Features of Longman Dictionary of Contemporary English:

– List of Thesaurus
– Grammar Notes
– Example Sentences in Corpus, 
showcasing sentences where the word is used

Significado de beautiful, Longman Dictionary
Meaning of "beautiful"
Lista de sinónimos - Longman Dictionary
List of Thesaurus
Notas gramaticales y ejemplos del corpus - Longman Dictionary
Grammar Notes & Examples from the Corpus

The best feature is that every day, Longman Dictionary introduces 1 word as the “Word of the day” and 2 images as “Pictures of the day”. This allows you to study new words daily just by opening the dictionary!

Additionally, under the “Word of the day,” you will find around 15 words related to a specific category, enabling you to learn vocabulary even in areas that might not initially interest you.

 

Word of the day - Longman Dictionary
Word of the day: edgy | Words related to "Babies" Category | Pictures of the day: deck chair, sun lounger

  ✔️ Pros    

  • Good for Japanese, Korean, or Spanish-speaking people
  • Includes Grammar Notes
  • Outstanding features that boost your English level

✖ Cons 

  • Not suitable for English beginners as all content is in English

Pros

Good for Japanese, Korean, or Spanish-speaking people

Includes Grammar Notes

Outstanding features that boost your English level

Cons

NOT very easy to read due to color scheme

Not suitable for English beginners as all content is in English

Oxford Learner’s Dictionaries is an English-English dictionary recommended for intermediate to advanced English learners. 

It provides clear explanations in English and includes detailed information on how to use words, such as their present, past, and past participle tenses, along with numerous example sentences.

Included WordsPhrases and Meanings
42,00035,000 examples

Additionally, you can find Synonyms for the word you are searching for. The dictionary also offers numerous extra examples, making it easier to understand how words are used in context.

significado de beautiful, Oxford Learner's Dictionaries
Easy to read and includes audio pronunciation
Screenshot 388
Numerous examples in the "+ synonyms" and "+ Extra Examples" sections
Sinónimo de "beautiful", Oxford Learner's Dictionaries
Synonyms of "beautiful"
Ejemplos adicionales | Oxford Learner's Dictionaries
Offers multiple example sentences

  ✔️ Pros    

  • Best for English Learning 
  • Provides audio pronunciation, usage examples, and inflections
  • Offers synonyms

✖ Cons 

  • Not suitable for English beginners as all content is in English
  • Sometimes Longman Dictionary provides easy-to-understand definitions

Pros

Best for English Learning 

Provides audio pronunciation, usage examples, and inflections

Offers synonyms

Cons

Not suitable for English beginners as all content is in English

Sometimes Longman Dictionary provides easy-to-understand definitions

Merriam-Webster is a recommended dictionary for those who want to enjoy English more! Since everything is in English, it might be challenging for beginners.

*However, even for beginners, it is incredibly useful when you want to look up similar words (Synonyms) or words with opposite meanings (Antonyms)! (➡ see photo 5)

Features:

  • “Did you know?” section offers quick trivia with fun facts! (Photo 2)
  • Synonyms section is good for finding words with similar meanings. (Photo 3)
  • Word History section tells you about the origins of words. (Photo 4)
  • Thesaurus page to quickly find Synonyms (words with similar meanings) and Antonyms (words with opposite meanings). (Photo 5)
significado de beautiful | Merriam-Webster
[Top Left] Two sections: Dictionary and Thesaurus
Did you know? section | Merriam-Webster
Learn Fun Facts about the word!
Synonyms | Merriam-Webster
A list of synonyms for the word
Word History | Merriam-Webster
Word History tells you about the origin of the word
Thesaurus | Merriam-Webster
[Top Left] Selecting Thesaurus and you can see Synonyms & Similar Words

You can also enjoy learning English through Games & Quizzes and more!
Please check it out if you are interested!

  ✔️ Pros    

  • Has features to make learning English fun
  • Convenient when you want to know synonyms
  • Tells Fun Facts about words!

✖ Cons 

  • Not suitable for English beginners as all content is in English
  • Sometimes not easy to understand definitions
  • Few short-sentence examples

Pros

Has features to make learning English fun

Convenient when you want to know synonyms

Tells Fun Facts about words!

Cons

Not suitable for English beginners as all content is in English

Sometimes not easy to understand definitions

Few short-sentence examples

Conclusion

I introduced recommended free Online Dictionaries for English learning. Finally, I’ll summarize who each dictionary is recommended for.

Recommended Dictionaries

For those who want to enjoy learning English
Merriam-Webster

For those who want to know synonyms
Collins Dictionary
Oxford Learner’s Dictionaries
Merriam-Webster

The dictionaries I’ve recommended above are my top picks among the many online English dictionaries available today!

I hope this serves as a helpful guide for anyone unsure of which dictionary to choose or seeking a free online English dictionary.

Thank you for reading till the end and visiting my website! 
Enjoy your journey in learning English!😊

See ya!! 

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