O′ver‐hang′, n.(Arch.) 1. In a general sense, that which just out or projects; a projection; also, the measure of the projection; as, the overhang is five feet.
2. Specifically: The projection of an upper part (as a roof, an upper story, or other part) of a building beyond the lower part; as, the overhang of a roof, of the eaves, etc.
3. (Naut.) The portion of the bow or stem of a vessel that projects over the water beyond the water line.
4. (Mach.) The projection of a part beyond another part that is directly below it, or beyond a part by which it is supported; as, the overhang of a shaft; i.e., its projection beyond its bearing.