What does "unzip" mean?

To open something using a zipper.

Unzip

Common synonyms include: archive extraction, decompress, decompressed, decompresses, decompression, extract.

verb

verb ·2 syllables ·Uncommon ·Advanced level

Verb

1
To open something using a zipper. transitive
"He turned back and started unzipping a bag."
2
open the zipper of wordnet
3
To come open by means of a zipper. intransitive
4
To restore (compressed data) to its original form, from a zip file. transitive

"Unzip the outfit carefully if the baby is squirming."

From un- + zip.