Who can define determinant in common language?

First, define the term of determinant.

In the determinant of order n, the product of elements in n different rows and columns is called an item.

Definition of determinant: algebraic sum of all terms of determinant.

Algebraic sum: the sum of addition and subtraction. Or it is understood that this item needs to be multiplied by 1 or-1 and then summed.

The sum of the reciprocal of row coordinates and the reciprocal of column coordinates is multiplied by 1 when it is even, and multiplied by-1 when it is odd.

This is the most popular language I can think of, and I usually teach people this way.