анкер

Etymology
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Noun

 * 1) part of a clockwork, ensuring uniformity of its stroke, a type of escapement
 * 2) old measure of volume, used for wine, brandy and oil
 * 3) fastener for fixing of structures and equipment
 * 4) a device that serves to transmit the pull out forces from building structures to the ground layer
 * 5) a device with known coordinates, the coordinates of which are determined relative to markers used in positioning systems
 * 6) truss rod metal rod inside the neck of a guitar