• fail to keep possession of; mislay, misplace; be deprived of; be defeated, fail; be bereaved; suffer a loss; waste; miss; go in the wrong direction; become less effective or valuable, diminish
• if you lose something, you cannot find it, for example because you have forgotten where you put it.
• you also say you lose something when you no longer have it, although you would like to have it, usually because it has been taken away from you or destroyed.
• if you lose a quality or characteristic, you do not have it any more.
• if you lose blood or fluid from your body, it leaves your body so that you have less of it.
• if you lose weight, you become thinner.
• if you lose a part of your body, it is cut off in an operation or in a violent accident.
• if you lose a relative or friend, they die.
• if you lose an opportunity or lose time, you waste it.
• if a business loses money, it earns less than it spends.
• if a clock or watch loses time, it shows a time that is earlier than the real time.
• if you lose a competition or argument, someone does better than you and defeats you.
• see also lost.
• if you have something to lose, you may suffer if you do something unsuccessfully.
• if someone loses their life, they die in a sudden, violent way, for example in an accident or a war.
• if you lose sight of something, you can no longer see it.
• if you lose sight of an aim, objective, or important fact, you forget about it because you are distracted by other, less important things.
• if you lose out, you do not succeed in what you are doing and so suffer a loss or disadvantage.
lose a son
• have a son die
lose an eye
• be blind in one eye, lose the use of an eye
• fade, discolor; pale lose consciousness ...