(n)fault, faulting, geological fault, shift, fracture, break(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other“they built it right over a geological fault”, “he studied the faulting of the earth's crust”
(v)switch, shift, changelay aside, abandon, or leave for another“switch to a different brand of beer”, “She switched psychiatrists”, “The car changed lanes”