Knit  v. (-tt-; past and past part. Knitted or (esp. In senses 2–4) knit) 1 (also absol.) A make (a garment etc.) By interlocking loops of esp. Wool with knitting-needles or a knitting-machine. B make (a plain stitch) in knitting (knit one, purl one). 2 momentarily wrinkle (the forehead) or (of the forehead) become momentarily wrinkled. 3 (often foll. By together) make or become close or compact. 4 (often foll. By together) (of a broken bone) become joined; heal.  knit up make or repair by knitting.  knitter n. [old english]