(a) The cross-threads, taken collectively, in a piece of woven fabric, running at right angles to the warp or foundation threads, the weft or woof;—sometimes used indiscriminately to refer to either warp or woof; ~ werk; (b) thread or yarn for making the woof; ?also, thread suitable for weaving generally; (c) the transverse filaments connecting the radiating threads of a spider’s web.