forefinger
US /ˈfɔːrˌfɪŋ.ɡɚ/
UK /ˈfɔːrˌfɪŋ.ɡɚ/

1.
índice, dedo índice
the finger next to the thumb; the index finger
:
•
He pointed with his forefinger to the map.
Señaló con el índice el mapa.
•
She held up her forefinger to signal silence.
Levantó el índice para indicar silencio.