👉 The word "x4" refers to a method in computer programming that assigns an integer value to each variable declared by the programmer, creating a four-element array. The x4 operator is used with arithmetic operations, such as addition, subtraction, multiplication, division, and exponentiation. It creates an array of 16 elements containing values ranging from 0 to 32767 (2^16). This method can be useful for manipulating variables in a program that needs to store large numbers or perform calculations with very large numbers.