safety pin
US /ˈseɪf.ti ˌpɪn/
UK /ˈseɪf.ti ˌpɪn/

1.
kim băng
a pin with a guard that covers the sharp point when it is closed, to prevent it from sticking into the wearer and to fasten it more securely
:
•
She used a safety pin to fasten her skirt.
Cô ấy dùng kim băng để ghim váy.
•
He attached the badge with a small safety pin.
Anh ấy gắn huy hiệu bằng một chiếc kim băng nhỏ.