The act or an instance of losing something
The condition of being deprived of what one once had or ought to have
The act or fact of losing
Damage suffered by loss, sense 1
The result of unprofitable activity
He already felt the loss of her calm energy, but he had no idea what to do about it.
The sense of loss returned.
The blood loss and lack of food made her dizzy.
On the other hand, if he lost them, she would be sharing the loss of lifestyle.
I was at a loss what to do.