noun a brothel.
2. rookery ·noun the breeding ground of seals, ·esp. of the fur seals.
3. rookery ·noun the breeding place of a colony of rooks; also, the birds themselves.
4. rookery ·noun a breeding place of other gregarious birds, as of herons, penguins, ·etc.
5. rookery ·noun a dilapidated building with many rooms and occupants; a cluster of dilapidated or mean buildings.