‘手指’ literally means 'hand-finger' and refers to any of the five digits on the human hand — the thumb, index finger, middle finger, ring finger, or little (pinky) finger. While 手 (shǒu) means 'hand' and 指 (zhǐ) on its own can mean 'finger' or 'to point', together 手指 is the standard, unambiguous noun for 'finger' in everyday Mandarin. It’s used in both anatomical and functional contexts — for example, when describing physical sensations, gestures, injuries, or fine motor actions like typing or playing an instrument.

This word is neutral in register and appears frequently in health-related discussions (e.g., cuts, numbness, arthritis), daily routines (e.g., washing hands, wearing gloves), and descriptive language (e.g., long fingers, cold fingers). Unlike the more literary or poetic term 指头 (zhǐtou), 手指 is preferred in spoken and written standard Chinese across all age groups and settings.