What is to increase by adding an equal number, quantity, length, value, or the like; multiply by two; to double a sum of money; to double a number, or length. Double six thousand, and then treble that. Shak called?

double — To increase by adding an equal number, quantity, length, value, or the like; multiply by two; to double a sum of money; to double a number, or length. Double six thousand, and then treble that. Shak. (Webster's 1913.)

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