A finger is one of the five long, movable parts at the end of your hand, used for touching, holding, and feeling. In measuring, it can also mean a small width or amount.
It comes from Old English “finger,” from a very old Germanic word that has stayed almost unchanged for thousands of years. The root is connected to notions of grasping and pointing.
Your fingers are among the most sensitive tools your brain has, packed with touch sensors. We even use them as units—like “a finger of whiskey”—showing how the body itself became an early measuring system.
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