to throw with the hand; especially, to throw with the palm of the hand upward, or to throw upward; as, to toss a ball.-to lift or throw up with a sudden or violent motion; as, to toss the head.-to cause to rise and fall; as, a ship tossed on the waves in a storm.-to agitate; to make restless.-hence, to try; to harass.-to keep in play; to tumble over; as, to spend four years in tossing the rules of grammar.-to roll and tumble; to be in violent commotion; to write; to fling.-to be tossed, as a fleet on the ocean.-a throwing upward, or with a jerk; the act of tossing; as, the toss of a ball.-a throwing up of the head; a particular manner of raising the head with a jerk.