1 (for keeping in position) cuña (f); calza (f) to drive a wedge between two people abrir una brecha entre dos personas
this is the thin end of the wedge esto puede ser el principio de muchos males The Malvern case threatens to overturn that principle # And it could be the thin end of the wedge for thousands of other employees Sir David Smith, principal of Edinburgh University, said that top-up fees were the thin end of the wedge. Once introduced for some courses, they would spread to all subjects, he said