Language Abbreviation Dictionary Directory and search engine for acronyms, abbreviations and initialisms Acronym Finder Dictionary of acronyms, abbreviations, and initialisms Dictionary (Merriam-Webster) Provides definitions, parts of speech, synonyms, origins of words and rhyming words, as well as a medical dictionary and concise encyclopedia. Duolingo Free language learning platform offers many languages on the web, Android, iOS, and Windows. Claims that 34 hours of independent study on Duolingo is the equivalent of one semester of college language class. Etymology Dictionary Online etymology dictionary providing origins and derivations of English words.  Includes related terms for alternate meanings. Google Translate Handspeak A website that offers demonstrations, vocabulary, and resources for a variety of age groups about American Sign Language. Idiom Site Definitions for a limited list of every day idioms in common use. Omniglot An online encyclopedia of writing systems and languages. Pronunciation Dictionary Online pronunciation reference. Seeks to compile native speaker pronunciations for all the words that exist in the world, including names. Rhyming Dictionary Finds rhymes, synonyms, adjectives, and more. Slang Dictionary Dictionary is a dictionary of slang words, neologisms, idioms, aphorisms, jargon, informal speech, and figurative usages. Rosetta Stone This resource provides a proven language learning immersion method trusted for over 20 years. It is funded by the New Jersey State Library. The TOEFL Test Information about the English-language test for study, immigration, and work. USA Learns A website that offers free English language learning resources.