Finger numbering

The first finger is an ambiguous term in the English language due to two competing finger numbering systems that can be used. It might refer to either the thumb or the index finger, depending on the context. Consequently, also the terms second finger, third finger and fourth finger depend on the numbering system used in the context. Instead, the fifth finger will exclusively refer to the pinky, (also called the little finger), since the term is only used in the five-finger system.