What is the English term for giant shrimp?

In English, the Words "giant shrimp" are an example of an oxymoron. An oxymoron is when basically two antonyms are put together. "Shrimp" is a Word for being small, and "giant" is a Word for being big.

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I'm guessing that you mean English as in England. If so, they are called a Prawn. Hope this helps you!