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In anatomy, the dorsal side of the torso in humans and other primates

The human back,

Back (sports), a player's position in many ball games

Back, Outer Hebrides, a village on the Isle of Lewis, Scotland

The Backs, an area of Cambridge at the rear of several colleges by the River Cam

A light-sensing unit for a camera, such as a digital camera back

An alternative spelling of bauk, a Scottish agricultural term