1. Mathematics: Number or other known factor (usually a constant) by which another number or factor (usually a variable) is multiplied. For example, in the equation ax2 + bx + c = 0, 'a' is the coefficient of x2, and 'b' is the coefficient of x.

2. Physics and statistics: Measure of a specified characteristic or property of a particular body, material, phenomenon, process, etc., under specified conditions.

You can multiply numbers by coefficients and use those numbers in equations to find the slope of lines and other data.

When trying to decide how much of a product you will need you can use it as a coefficient and multiply it by the number of customers.

You can use your product as a coefficient and multiply it by the predicted number of customers to see what type of profit you might make.