1) Disunite a fly 2) Open 3) Open a barn door 4) Open a compressed file 5) Open a computer file 6) Open a snowsuit 7) Open a suitcase 8) Open a thigh-high boot 9) Open the zipper of 10) Prepare to take off 11) Remove a coat lining 12) To decompress 13) Unfasten Found on https://www.crosswordclues.com/clue/unzip
(zipper fall, zip out) A fall where one piece of protection after another is pulled out by the force of the fall. Often refers to the failure of intermediate protection in rock climbing but is also a threat for fixed lines and for running belays in alpine climbing. Found on http://santiamalpineclub.org/mountain/climbing/terms/
To decompress a file that has been compressed using the zip format. Tools like WinZip or WinRar can extract these. Found on https://www.encyclo.co.uk/local/22026