b"Posted by rfvv on Wednesday, October 5, 2016 at 9:36pm. When we send letters, we write 'zip code' on the envelope. What is the meaning of 'zip'? Why is 'zip' used here? \xc2\x95English - Ms. Sue, Wednesday, October 5, 2016 at 9:40pm The word zip is an acronym for Zone Improvement..."