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Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

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Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions to their math problems instantly.

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

YourDictionary is a free online dictionary that offers definition search from Webster's dictionary for word meanings and thesaurus. Use this dictionary search as a crossword or scrabble dictionary. Also find legal dictionary, technical words, glossar...

Free Online Math Calculators and Converters. Mathematics Calculation is made easier.

Coolmath has a ton of cool math games and puzzles, lots of really clear math lessons (arithmetic, fractions, decimals, algebra, etc.), fractals, geometry, tessellations and more. Tons of very cool math stuff for kids, teens, parents and teachers too!

Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.

Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.

Math help since 1998. Math Goodies helps kids at all levels with interactive instruction and free resources. Get help online or offline.