Definitions

1. verb

to complain or resent, especially in a grumbling or discontented manner

“She groused about the long lines at the airport.”

2. noun

a bird of the family Tetraonidae, especially the black grouse or the red grouse.

“The grouse was perched on a tree branch, its feathers rustling in the wind.”

3. verb

to feed, especially on grass or other vegetation

“The deer groused on the lush meadow.”

4. noun

a type of large metal spike or point, used for securing or fastening something

“The contractor used a grouse to anchor the wooden beam in place.”