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  1. It provides the most complete and accurate picture of the English language today. The dictionary features 75,000 audio pronunciations of both common and rare words, dubbed in both British and American voice versions, including words with controversial or variant pronunciations.

  2. The largest and most trusted free online dictionary for learners of British and American English with definitions, pictures, example sentences, synonyms, antonyms, word origins, audio pronunciation, and more. Look up the meanings of words, abbreviations, phrases, and idioms in our free English Dictionary.

  3. 28 Ιουλ 2020 · Oxford Dictionary of ScienceOxFord University PressSixth Edition2010ISBN:9780199561469. Addeddate 2020-07-28 09:25:56 Identifier OxfordDictionary_of_Science

  4. 23 Οκτ 2024 · Meaning implies that at least one (direct) relationship exists between the specific acoustic properties, and the perception of a. sound, often associated with a second relationship: the ...

  5. 28 Δεκ 2020 · Sound is a type of mechanical wave or an oscillation of matter. When a sound wave propagates through a medium, such as air, it does so by causing the air molecules to vibrate, which causes changes in air pressure. The speed of sound in air is around 343 m/s but can vary with temperature.

  6. Oxford English Dictionary. The historical English dictionary. An unsurpassed guide for researchers in any discipline to the meaning, history, and usage of over 500,000 words and phrases across the English-speaking world. Find out more about OED. Understanding entries. Glossaries, abbreviations, pronunciation guides, frequency, symbols, and more.

  7. 17 Οκτ 2024 · Sound, a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium. A purely subjective, but unduly restrictive, definition of sound is also possible, as that which is perceived by the ear. Learn more about the properties and types of sound in this article.

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