Answer:
A regional or social variety of a language distinguished by pronunciation, grammar, or vocabulary, especially a variety of speech differing from the standard literary language or speech pattern of the culture in which it exists.
or
A variety of language that with other varieties constitutes a single language of which no single variety is standard.
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These subs are useful in studying the ocean floor, where it is so deep that divers would be crushed by the water pressure. For example, research submersibles are used to study shipwrecks like the RMS Titanic.
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As we celebrate the ending of the war 75 years ago, know this: victory for the Allies was never guaranteed, and historians agree there were countless ways Germany could have won the war. Defeat never came down to one battle or one campaign.
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