Bedeutung von “unzip” — Learner’s Dictionary

unzip

verb [ T ] us uk /ʌnˈzɪp/ present participle unzipping, past tense and past participle unzipped
OPEN

to open something by using its zip (= two rows of metal or plastic points that fasten two sides together):

He unzipped his trousers.
COMPUTING

to make a file bigger again after it has been zipped (= made smaller so that you can send or store it) so that it can easily be used

(Definition von “unzip” aus dem Cambridge Learner's Dictionary © Cambridge University Press)