knot
1. knot \'na:t\ n [ME, fr. OE cnotta; akin to OHG knoto knot, Lith gniusti to p]ress 1a: an interlacement of the parts of one or more flexible bodies forming a lump or knob 1b: the lump or knob so formed 2: something hard to solve : PROBLEM 3: a bond of union; esp : the marriage bond 4a: a protuberant lump or swelling in tissue 4b: the base of a woody branch enclosed in the stem from which it arises; (Xalso : its section in lumber 5: a cluster of persons or things : GROUP 6: an ornamental bow of ribbon : COCKADE 7a: a division of the log line serving to measure a ship's speed 7b1: one nautical mile per hour 7b2: one nautical mile 2. knot vb or knot.ted; or knot.ting 1: to tie in or with a knot : form knots in 2: to unite closely or intricately : ENTANGLE 1: to form knots 2: to knit knots for lace or trimming 3. knot n [ME knott] : any of several sandpipers (genus Calidris) that breed in the Arcti c and winter in temperate or warm part of the New and Old World
Webster's English Dictionary