something that is used for pointing at things, such as a long, thin stick that you hold to direct attention to a place on a map or words on a board, or a cursor

a helpful piece of advice or information

This booklet gives some useful pointers on what to expect when you arrive. 这本小册子为你提供了到达后需知情况的有用提示。

something that shows you an existing or developing situation

The performance of the car industry is a (good) pointer to the general economic health of the country. 轿车工业的状况是显示该国经济总体情况的（很好的）晴雨表。

a hunting dog that has been trained to stand very still with its nose pointing towards the animals and birds that are being hunted