'Roost' definitions:

Definition of 'roost'

noun

A shelter with perches for fowl or other birds

noun

A perch on which domestic fowl rest or sleep

verb

Sit, as on a branch; "The birds perched high in the tree" [syn: perch, roost, rest]

verb

Settle down or stay, as if on a roost

From: GCIDE

From: GCIDE

From: GCIDE

Roost \Roost\, n. [AS. hr[=o]st; akin to OD. roest roost, roesten to roost, and probably to E. roof. Cf. Roof.]
1. The pole or other support on which fowls rest at night; a perch. [1913 Webster]
He clapped his wings upon his roost. --Dryden. [1913 Webster]
2. A collection of fowls roosting together. [1913 Webster]
At roost, on a perch or roost; hence, retired to rest. [1913 Webster]

From: GCIDE

Roost \Roost\, v. i. [imp. & p. p. Roosted; p. pr. & vb. n. Roosting.]
1. To sit, rest, or sleep, as fowls on a pole, limb of a tree, etc.; to perch. --Wordsworth. [1913 Webster]
2. Fig.; To lodge; to rest; to sleep. [1913 Webster]
O, let me where thy roof my soul hath hid, O, let me roost and nestle there. --Herbert. [1913 Webster]

From: GCIDE

Roust \Roust\, n. [Cf. Icel. r["o]st an estuary.] A strong tide or current, especially in a narrow channel. [Written also rost, and roost.] --Jamieson. [1913 Webster]