刀尖 (dāo jiān) literally combines 刀 (dāo), meaning 'knife' or 'blade', and 尖 (jiān), meaning 'point', 'tip', or 'sharp end'. Together, it refers specifically to the very tip or pointed end of a knife or similar bladed tool — the narrowest, sharpest part where cutting force is most concentrated. It emphasizes precision, danger, or vulnerability due to its extreme sharpness.

This term appears in both literal and figurative contexts: literally in descriptions of tools, weapons, or surgical instruments; figuratively in idioms like '站在刀尖上' (to stand on the knife tip), meaning to be in an extremely precarious or high-risk situation. While not exclusively tied to animals, it frequently appears in contexts involving animal handling — for example, when describing precise cuts during butchery or veterinary procedures on livestock or poultry.