movement, motility, motion, move - a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility"

overturn, turnover, upset - the act of upsetting something; "he was badly bruised by the upset of his sled at a high speed"