noun mist; fog. ·see roke.
2. rook ·noun a trickish, rapacious fellow; a cheat; a sharper.
3. rook ·vi to squat; to ruck.
4. rook ·vt & ·vi to cheat; to defraud by cheating.
5. rook ·noun one of the four pieces placed on the corner squares of the board; a castle.
6. rook ·noun a european bird (corvus frugilegus) resembling the crow, but smaller. it is black, with purple and violet reflections. the base of the beak and the region around it are covered with a rough, scabrous skin, which in old birds is whitish. it is gregarious in its habits. the name is also applied to related asiatic species.