1 That which happens without design; chance; hazard; hap; hence, chance of danger or loss. Nay, a far less good to man it will be found, if she must, at all adventures, be fastened upon him individually. Milton.
2 Risk; danger; peril. [Obs.] He was in great adventure of his life. Berners.
3 The encountering of risks; hazardous and striking enterprise; a bold undertaking, in which hazards are to be encountered, and the issue is staked upon unforeseen events; a daring feat. He loved excitement and adventure. Macaulay.
4 A remarkable occurrence; a striking event; a stirring incident; as, the adventures of one’s life. Bacon.
5 A mercantile or speculative enterprise of hazard; a venture; a shipment by a merchant on his own account. A bill of adventure (Com.), a writing setting forth that the goods shipped are at the owner’s risk.

1 To risk, or hazard; jeopard; to venture. He would not adventure himself into the theater. Acts xix. 31.
2 To venture upon; to run the risk of; to dare. Yet they adventured to go back. Bunyan, Discriminations might be adventured. J. Taylor.