1. An attachment for resistance to movement; the movement can be a result of overturning, sliding or uplift; the most common anchorage for these movements are tie-downs (hold-downs) for overturning and uplift, and anchor bolts for sliding. 2. In posttensioning, a device used to anchor tendons to concrete member; in pretensioning, a device used to anchor tendons during hardening of concrete. 3. The securing of reinforcing bars in cast-in-place concrete either by hooks, bends, or embedment length.