Definition of "Zip" :
noun: a fastener for locking together two toothed edges by means of a sliding tab
noun: forceful exertion
"He's full of zip."
noun: a code of letters and digits added to a postal address to aid in the sorting of mail
noun: a quantity of no importance
verb: close with a zipper
"Zip up your jacket--it's cold."
verb: move very fast
"The runner zipped past us at breakneck speed."