Definitions

1. noun

a weir or a narrow, shallow part of a river or stream where the water is slower and often deeper, especially where fish can swim upstream or be trapped

“The fisherman had to navigate through the wier to reach his favorite fishing spot.”

2. verb

to stop or impede the flow of water, especially to trap fish in a river or stream

“The fishermen were weiring the river to catch more fish for the season.”