Definitions

1. noun

A small opening in a garment, especially a coat or jacket, for fastening with a button.

“She carefully sewed a buttonhole for the missing button on her husband’s coat.”

2. verb

To sew or make a buttonhole in a garment.

“She buttonholed the jacket before wearing it to the party.”

3. noun

A small opening or gap in something.

“The buttonhole in the fabric allowed a tiny thread to escape.”