HEATKEYS

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

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

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

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...

Princeton University is a vibrant community of scholarship and learning that stands in the nation's service and in the service of all nations.

This is a page in The Physics Hypertextbook. It is a work in progress.

Educational and entertaining items pertaining to physics, the mathematical sciences, and to mathematics in general.

YouTube is a place to discover, watch, upload and share videos.

Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synonym dictionary, antonym dictionary, words synonyms.

Free online English dictionary from Oxford, plus thesaurus, word of the day, resume examples, letter writing, and English grammar