loss

n. 1 losing or being lost. 2 thing or amount lost. 3 detriment resulting from losing.  at a loss (sold etc.) For less than was paid for it. Be at a loss be puzzled or uncertain. [probably back-formation from *lost]

v. t. The act of losing; failure; destruction; privation; as, the loss of property; loss of money by gaming; loss of health or reputation.