Definitions

1. verb

to remove the fastener or covering of something, especially a bag or a jacket, so that it can be opened or closed again

“She had to unzip her coat before entering the warm room.”

2. verb

to remove or undo the fastening of something, such as a file or archive, so that its contents can be accessed

“He had to unzip the folder to find the document he needed.”

3. noun

the act of removing the fastener or covering of something, especially a bag or a jacket

“The unzip of her coat was very slow.”