pushpin
US /ˈpʊʃ.pɪn/
UK /ˈpʊʃ.pɪn/

1.
chincheta, tachuela
a short pin with a broad, flat head, used for fastening papers to a display board or wall
:
•
She used a pushpin to attach the notice to the bulletin board.
Ella usó una chincheta para fijar el aviso en el tablón de anuncios.
•
Be careful not to step on a loose pushpin.
Ten cuidado de no pisar una chincheta suelta.