Dictionary book is a reference book that contains a collection of words and their meanings, typically arranged in alphabetical order. It provides definitions, pronunciation guides, word origins (etymology), and sometimes usage examples. Some dictionaries also include translations for multiple languages, synonyms and antonyms, and grammatical information.
Dictionaries can be general (covering common vocabulary) or specialized (focused on specific fields like medicine, law, or science). They come in different formats, including printed books, digital versions, and online databases. Well-known dictionaries include the Oxford English Dictionary (OED), Merriam-Webster Dictionary, and Cambridge Dictionary.
