General Dictionaries:
* Merriam-Webster: [https://www.merriam-webster.com/](https://www.merriam-webster.com/)
* Oxford Dictionaries: [https://www.oxfordlearnersdictionaries.com/](https://www.oxfordlearnersdictionaries.com/)
* Dictionary.com: [https://www.dictionary.com/](https://www.dictionary.com/)
* Cambridge Dictionary: [https://dictionary.cambridge.org/](https://dictionary.cambridge.org/)
* Vocabulary.com: [https://www.vocabulary.com/](https://www.vocabulary.com/)
* The Free Dictionary: [https://www.thefreedictionary.com/](https://www.thefreedictionary.com/)
Specialized Dictionaries:
* Medical Dictionary: [https://www.merriam-webster.com/medical](https://www.merriam-webster.com/medical)
* Legal Dictionary: [https://legal-dictionary.thefreedictionary.com/](https://legal-dictionary.thefreedictionary.com/)
* Business Dictionary: [https://www.businessdictionary.com/](https://www.businessdictionary.com/)
* Urban Dictionary: [https://www.urbandictionary.com/](https://www.urbandictionary.com/) (For slang and informal definitions)
Tips for Choosing a Dictionary:
* Language: Choose a dictionary for the specific language you need.
* Target audience: Some dictionaries are geared towards learners, while others are more comprehensive.
* Features: Consider whether you need audio pronunciation, examples, synonyms, or other features.
In addition to these websites, many browsers have built-in dictionary functionality. You can usually access it by right-clicking a word and selecting "Define".
Enjoy your dictionary exploration!