How do you spell Roost

Available Definitions:
1)  n. - Roast.
2)  v. t. - See Roust , v. t.
3)  n. - The pole or other support on which fowls rest at night; a perch.
4)  n. - A collection of fowls roosting together.
5)  v. i. - To sit, rest, or sleep, as fowls on a pole, limb of a tree, etc.; to perch.
6)  v. i. - Fig.; To lodge; to rest; to sleep.