What is another word for "cliff"?

Roget's Thesaurus (1911) lists these synonyms for "cliff": angle, angles, azimuth, bolt, circle, cock, elevation, end, endwise, erect, erection, erectness, its, line, normal, one, orthogonal, perpendicular, perpendicularity, plumb, plummet, precipice, raise, rampant, rear, rectangular, render, right, set, square, stand, standing, stick, straight, upright, vertical, verticality, vertically, wall.