Knit \Knit\, v. i. 1. To form a fabric by interlacing yarn or thread; to weave by making knots or loops. 2. To be united closely; to grow together; as, broken bones will in time knit and become sound. {To knit up}, to wind up; to conclude; to come to a close. ``It remaineth to knit up briefly with the nature and compass of the seas.'' [Obs.] --Holland.