What is the meaning of Multiplication?

The process of computing the sum of an addition with one and the same number a specified number of times (i.e. 4 times 5 = [0 +] 5 + 5 + 5 + 5 = 20) or any other analogous binary operation that combines other mathematical objects.

A calculation involving multiplication.

The process of multiplying or increasing in number; increase.

multiplication (process)

Source: wiktionary.org