To throw over or across.To cover; overspread.To cloud; darken; cover with gloom.To cover with skin, as a wound; hence, to have (a wound) healed.To cast or compute at too high a rate; rate too high.In sewing, to fasten by stitching roughly through and over two edges of a fabric. Also overseam.To become cloudy or dull; become dark or gloomy.n. In mining, an air-duct or passage which crosses above another passage.In geology, cast or thrust beyond a normal position, as in a thrust-fault or overturned fold.