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.
ring finger in British English
noun
the third finger, esp of the left hand, on which a wedding ring is traditionally worn
ring finger in American English
the finger next to the little finger, esp. of the left hand: the wedding ring is usually worn onthis finger
Examples of 'ring finger' in a sentence
ring finger
Where the wedding ring finger moves far more than the other digits thus alerting potential admirers to your single status.
Times, Sunday Times (2017)
Touch your left ring finger to your left thumb.
Times, Sunday Times (2010)
The tips of the middle and ring finger of his right hand were chopped off at work.
The Sun (2011)
When you meet a woman, do you check her wedding ring finger?
Times, Sunday Times (2008)
She appeared with a scarf wrapped around her left hand, apparently to conceal her wedding ring finger.