n.[C]

1. （绳等的）结；（装饰用的）花结；蝴蝶结
   He tied the two ropes together with a knot.

   他打个结把两根绳子系在一起。

2. （树干的）节疤；（肌肉的）节瘤，硬块
3. 一小群，一小队
   A knot of friends waved him good-bye.

   一群朋友向他挥手告别。

4. 难题，麻烦事；疙瘩
   He was at a loss how to cut the knot.

   他不知如何才能大刀阔斧地解决这一难题。

5. （婚姻的）结合
6. 【海】节（速度单位，1节 = 1海里/小时）

vt.

1. 把……打结；捆扎
   Nancy knotted the shoelaces for her little sister.

   南茜替她年幼的妹妹系上鞋带。

2. 使密切结合

vi.

1. 打结
   This string knots easily.

   这根细绳很容易打结。

n.

1. a fastening made by looping a piece of string, rope, etc. on itself and tightening it.
   ▸a tangled mass in hair, wool, etc.
   ▸an ornamental ribbon.
2. a protuberance or node in a stem, branch, or root.
   ▸a hard mass in wood at the intersection of a trunk with a branch.
   ▸a hard lump of bodily tissue.
3. a small group of people.
4. a unit of speed equivalent to one nautical mile per hour, used of ships, aircraft, or winds.
   ▸chiefly historical a length marked by knots on a log line, as a measure of speed.

v.

1. fasten with a knot.
   ▸make (a carpet) with knots.
   ▸tangle.
2. cause (a muscle) to become tense and hard.
   ▸(of the stomach) tighten as a result of tension.

n.