His index finger is shorter than his ring finger. - Onun işaret parmağı yüzük parmağından daha kısadır.
His index finger is smaller than his ring finger. - Onun işaret parmağı, yüzük parmağından daha küçüktür.
Finger between middle finger and little finger; the "third finger" (UK) or the "fourth finger" (US), especially of the left hand. (The ring finger is the left hand; a ring finger is either hand.)
Your ring finger is the third finger of your left or right hand, without counting your thumb. In some countries, people wear a ring on this finger to show that they are engaged or married. The third finger of the left hand. the finger, next to the smallest finger on your hand, that you traditionally wear your wedding ring on index finger