trough
nounUK /trɒf/
US /trɔːf/
A long, open box that holds food or water for animals.
The farmer filled the trough with water for the horses.
OTHER MEANINGS
2. A long, narrow hollow area between two waves or hills.
The small boat sat in the trough between two big waves.
3. A low point in a cycle, such as in business or weather.
Sales hit a trough last winter before rising again.
4. A channel or gutter for carrying water.
Rainwater ran along the trough beside the road.