Common everyday word for a zipper on clothing, bags, etc.
from English fastener
ジャケットのファスナーが壊れてしまった。
The zipper on my jacket broke.
バッグのファスナーを閉めてください。
Please close the zipper on the bag.
I zipped up my coat.
I opened the zipper on the bag and looked inside.
The zipper got caught on the fabric and won't move.
I pulled up my pants zipper before going outside.