same color wire but different function

Hi  would like to know if it common for a car to have a wire color perform different functions at different locations in the car? What I am asking is lets say you have a red wire which is the door trigger wire. Is it possible that there could be a red wire at a different location in the car which the manufacturer has used for the starter wire? Tahnk you

Yes

you could have 20 wires that are the same color, and each will perform a different function. Break out the dmm