Twill :: Twill (v. i.) To weave, as cloth, so as to produce the appearance of diagonal lines or ribs on the surface..
Twill :: Twill (v. t.) An appearance of diagonal lines or ribs produced in textile fabrics by causing the weft threads to pass over one and under two, or over one and under three or more, warp threads, instead of over one and under the next in regular succession, as in plain weaving..
Twill :: Twill (v. t.) A fabric women with a twill.
Twill :: Twill (v. t.) A quill, or spool, for yarn..
Twilly :: Twilly (n.) A machine for cleansing or loosening wool by the action of a revolving cylinder covered with long iron spikes or teeth; a willy or willying machine; -- called also twilly devil, and devil. See Devil, n., 6, and Willy..