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

1.
alfinete de segurança
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.
Ela usou um alfinete de segurança para prender a saia.
•
He attached the badge with a small safety pin.
Ele prendeu o crachá com um pequeno alfinete de segurança.