The online etymology dictionary (etymonline) is the internet's go-to source for quick and reliable accounts of the origin and history of English words, phrases, and idioms.

english obscure words and etymology resources: online dictionary of weird and unusual words, word lists, technical vocabulary aids, lipograms, and word related essays

The World's most comprehensive free online dictionary, thesaurus, and encyclopedia with synonyms, definitions, idioms, abbreviations, and medical, financial, legal specialized dictionaries

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reach your academic happy place with access to thousands of textbook solutions written by subject matter experts.

a language arts reference tool and comprehensive search engine for words. includes the functions of a rhyming dictionary, thesaurus, and spelling checker, as well as an integrated full-text search engine for all of shakespeare's works and thousands of quotations and poems.

acronym finder is the largest and most trusted database of over 4 million acronyms and abbreviations. what does an abbreviation stands for? the answer is here

Theidioms.com website has a large collection of the most common English idioms and sayings. Each idiom comes with several different examples, meanings, and origins.

A slang term (DBJ) that lets your [friend] [know that] they are about to or have done [something stupid].