尺子的英文是ruler。
解释：
ruler 英[ˈru:lə(r)] 美[ˈrulɚ]
n. 统治者; 尺; 直尺;
[例句]The ruler cracked and splintered into pieces
尺子裂开了，碎成了小片。
His guitar makes a noise like a wooden ruler being twanged upon a desk
他的吉他发出一声仿佛木尺弹在课桌上的噪音。
There is a pen, a knife and a ruler in the box.
盒子里有一支钢笔，一把小刀和一把尺子。
This is a ruler graduated in both inches and centimetres.
这是一把刻有英寸和
公分的尺子。