What is the best way to explain source code

Question

I was reading an article on Wikipedia about source code and it confused me:
Just for confirmation.
Is source code the code that tells the computer how to execute your program?

Answer 1

Professor Google has provided this definition.

instructions that a programmer writes—often in a word processing program—when he is developing a program. The source code is run through a compiler to turn it into machine code, also called object code, that a computer can understand and execute.

Answer 2

The source code is the code of the program

Answer 3

Jay Matthews what should I do if someone answers like this " The source code is the code of a program"