buttonslit
nounUK /ˈbʌtənslɪt/
US /ˈbʌtənsˌlɪt/
A buttonslit is a small cut where a button goes on clothes.
The buttonslit on my shirt is torn, so the button keeps falling off.
OTHER MEANINGS
2. A narrow opening in cloth made to hold a button.
She sewed the buttonslit neatly by hand.
3. A decorative slit on a garment that looks like a buttonhole.
The jacket had a fancy buttonslit on each cuff.
4. The space a button slips through when fastening clothes.
He pushed the button through the buttonslit and smiled.