👉 In mathematics, a "overbold" is a number that has been multiplied by itself three times. For example, 2
2
2 = 8 and 3
3
3 = 27. Overbolds are often used in algebraic expressions to represent the product of two numbers raised to a certain power, for instance, (x + y)^3 = x^3 + 3x^2y + 3xy^2 + y^3.