English definition of “loss”
NOT HAVING [C, U] › when you do not have someone or something that you had before, or when you have less of something than before: loss of income/memory blood/hair/weight loss job losses
MONEY [C, U] › when a company spends more money than it earns: Both companies suffered losses this year.
DISADVANTAGE [no plural] › a disadvantage caused by someone leaving an organization: It would be a great loss to the department if you left.
be at a loss › to not know what to do or say: [+ to do sth] I'm at a loss to explain his disappearance.
a sense of loss › sadness because someone has died or left
DEATH [C, U] › the death of a person: They never got over the loss of their son.