To roll about by turning one way and another; toss; pitch about; wallow: as, he tumbles and tosses from pain; the tumbling sea.To lose footing or support and fall to the ground; come down suddenly and violently; be precipitated; as, to tumble from a scaffold.To move or go in a rough, careless, or headlong manner.To play mountebank tricks by various springs, balancings, posturings, and contortions of the body.To dance.To fall rapidly, as prices: as, fancy stocks have tumbled.To turn in; go to bed.Nautical to come up hastily and in a scrambling way through the hatchway on a ship's deck, as a sailor or a number of sailors together: as, the starboard watch tumbled up.To turn over; toss about as for examination or search; revolve in one's mind: usually with over.To disorder; rumple: as, to tumble bedclothes.To throw by chance or with violence; fling; pitch.To bring down; overturn or overthrow; cast to the ground; fling headlong.To polish by revolution in a tumbling-box.n. A fall; a rolling or turning over; a somersault.n. A state of entanglement or confusion.n. Same as tumbling-box.