/rɒd; rɑd/
n
1 (often in compounds 常用以构成复合词) thin straight piece of wood or metal （木质或金属的）杆, 竿, 棍, 棒
*`curtain-rods 挂帘子的杆子
* a `measuring rod 测杆
* `piston-rods 活塞杆.
2 stick used for hitting people as a punishment; cane(3a) （责打用的）棍棒.
3 = fishing-rod (fish2).
4 (US sl 俚) hand gun 手枪.
5 = perch1 3.
6 (idm 习语) make a rod for one's own `back do sth likely to cause oneself difficulties later 自讨苦吃; 自找麻烦. a rod/stick to beat sb with => beat1. rule with a rod of iron => rule v. spare the rod and spoil the child => spare2.

n[C]
[Language: Old English;Origin: rodd]
a long thin pole or bar
steel/iron/wooden etc rod
　The walls are reinforced with steel rods.
　a measuring rod
basket, net, reel, rod
a long thin pole used with a line and hook for catching fish
= fishing rod
→hot rod, lightning rod
→rule sb/sth with a rod of ironatrule² (5)