Twill

[See TWEEL and QUILL. Cf. L. Ger. twillen, to separate into two parts.] To weave, as cloth, so as to produce the appearance of diagonal lines or ribs, on the surface of; to quill.

1Sense 1. 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.

2Sense 2. A fabric woven with a twill.

3Sense 3. A quill or spool for winding thread or yarn on. [Prov. Eng.]