index finger

US /ˈɪn.deks ˌfɪŋ.ɡər/
UK /ˈɪn.deks ˌfɪŋ.ɡər/
"index finger" picture
1.

食指

the finger next to the thumb; the forefinger

:
He pointed with his index finger.
他用食指指著。
She held up her index finger to signal 'one moment'.
她舉起食指示意“等一下”。