20; twenty; XX. Hypernyms (XX is a kind of...): large integer (an integer equal to or greater than ten)
Brood (verb). the young birds hatched at one time; a hatch; as, a brood of chickens. Brood (verb). the young from the same dam, whether produced at the same time or not; young children of the same mother, especially if nearly of the same age; offspring; progeny; as, a woman with a brood of children. Brood (verb).
Definition of rook. : a common Old World gregarious crow (Corvus frugilegus) that nests and roosts in usually treetop colonies.