Multiplication is a form of repeated addition. But scaling is correct too. Scaling is to multiply by a scalar. When you multiply a scalar and a vector, the vector lengthens or contracts. This can also be repeated addition of the vector.
However, the repeated addition concept falls apart with multiplication by zero.
Sort of. Certainly 0 x 5=0 is not repeated addition.
Except 0 x 5=5 x 0=0+0+0+0+0. So it can work.