WordNet

a knot in the rope used to drag a gun carriage (同)sailor''s breastplate
tie or fasten into a knot; "knot the shoelaces"
something twisted and tight and swollen; "their muscles stood out in knots"; "the old mans fists were two great gnarls"; "his stomach was in knots" (同)gnarl
a hard cross-grained round piece of wood in a board where a branch emerged; "the saw buckled when it hit a knot"
a sandpiper that breeds in the Arctic and winters in the southern hemisphere (同)greyback, grayback, Calidris canutus
any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
a tight cluster of people or things; "a small knot of women listened to his sermon"; "the bird had a knot of feathers forming a crest"
make into knots; make knots out of; "She knotted her fingers"
lengthen or extend in duration or space; "We sustained the diplomatic negotiations as long as possible"; "prolong the treatment of the patient"; "keep up the good work" (同)sustain, keep_up
lengthen in time; cause to be or last longer; "We prolonged our stay"; "She extended her visit by another day"; "The meeting was drawn out until midnight" (同)protract, extend, draw_out
a rope fitted with a hook and used for towing a gun carriage

PrepTutorEJDIC

『結び目』,結び / (リボンなどで作った)飾り結び / (人・物の,通例小さな)群れ,一団 / (板・木材の)節,節目;(筋肉などの)隆起 / 困難(difficulty) / 縁,絆(きずな) / ノット(1時間に1海里(約1,852m)進む速さの単位) / …‘を'『結びなわせる』《+『名』+『together』,+『together』+『名』》 / …‘に'結び目をつける,‘を'結ぶ / (こぶになって)堅く結ばれる,もつれる
(時間的・空間的に)‥‘を'『延ばす』,『延長する』
長引く,長期の