For Comprehensive Coverage and Etymology:
* Oxford English Dictionary (OED): Widely considered the gold standard for English lexicography. It offers extensive definitions, historical usage, and etymology.
* Merriam-Webster: Another reputable dictionary with a large vocabulary and a user-friendly interface. It also provides audio pronunciations and example sentences.
* Dictionary.com: A good all-around choice with a vast database of definitions, synonyms, and antonyms. It also includes a thesaurus and a word of the day feature.
For Clear and Concise Definitions:
* Cambridge Dictionary: Known for its clear and concise definitions, especially geared towards learners of English. It also includes examples of usage in different contexts.
* Longman Dictionary of Contemporary English: Another good option for learners, with a focus on contemporary usage and practical examples.
For Advanced Users and Specialized Fields:
* Collins Dictionary: Offers a comprehensive vocabulary, including specialized terms and idioms. It also includes a thesaurus and a grammar guide.
* Macmillan Dictionary: Excellent for advanced learners and researchers, featuring detailed grammatical information and usage notes.
For Visual Learners:
* Visual Thesaurus: Uses a word map to show relationships between words, making it ideal for visual learners.
For Mobile Users:
* Google Dictionary: Easily accessible via Google Search, offering definitions, pronunciations, and translations.
* Oxford Dictionary of English: Available as a mobile app with a user-friendly interface and offline access.
Things to consider when choosing a dictionary:
* Your level of English: Choose a dictionary appropriate for your proficiency level.
* Your purpose: Are you looking for definitions, etymology, synonyms, or examples of usage?
* Your budget: Some dictionaries are free, while others require subscriptions.
* Your preferences: Consider the interface, the search options, and the overall user experience.
Ultimately, the best online English dictionary for you will depend on your individual needs and preferences. Try exploring different options to find the one that works best for you.