ring finger

WordReference Random House Unabridged Dictionary of American English © 2025

ring′ fin′ger, 

1. the finger next to the little finger, esp. of the left hand, on which an engagement ring or wedding band is traditionally worn.

• Middle English, Old English bef. 1000

Collins Concise English Dictionary © HarperCollins Publishers::

ring finger noun

1. the third finger, esp of the left hand, on which a wedding ring is traditionally worn