zip fastener noun

A fastening device for clothes, etc, on which two sets of teeth can be opened or interlocked by pulling a slide along them

zipˈ-front, zipˈ-neck, zipˈtop, etc adjective

Having the front-, neck- or top-opening, etc fastened with a zip

zip gun noun (N American informal)

A home-made pistol powered by a spring or elastic band

zipˈlock adjective (N American)

Of a plastic bag, having ridged strips at the opening which may be pressed together to interlock, so sealing the bag

transitive verb

To seal, esp by pressing together

zipˈ-on, zipˈ-off, zipˈ-in, etc adjective

Able to be added, removed, inserted, etc by means of a zip

zipˈwire or zipˈline noun

A mechanism for travelling above the ground by holding a pulley that slides down a taut angled rope