anular, atrancar, borrar, cegar, corregir, decolorar, deshacer, desvanecer, esfumar, evaporar, inutilizar, obliterar, obstruir, obturar, ocluir, quitar, raspar, rectificar, suprimir, tachar
atascar, atorar, atrancar, cegar, obstruir, obturar
atascar, congestionar, detener, dificultar, embotellar, entorpecer, inmovilizar, obstruir, paralizar