Synonym: fail, flop, forfeit, mislay, misplace, sacrifice. Antonym: find, gain, win. Similar words: close, closet, closer, closest, closely, close in, close up, close down. Meaning: [luːz] 
v. 1. fail to keep or to maintain; cease to have, either physically or in an abstract sense 2. fail to win 3. suffer the loss of a person through death or removal 4. place (something) where one cannot find it again 5. miss from one's possessions; lose sight of 6. allow to go out of sight 7. fail to make money in a business; make a loss or fail to profit 8. fail to get or obtain 9. retreat 10. fail to perceive or to catch with the senses or the mind 11. be set at a disadvantage.
v. 1. fail to keep or to maintain; cease to have, either physically or in an abstract sense 2. fail to win 3. suffer the loss of a person through death or removal 4. place (something) where one cannot find it again 5. miss from one's possessions; lose sight of 6. allow to go out of sight 7. fail to make money in a business; make a loss or fail to profit 8. fail to get or obtain 9. retreat 10. fail to perceive or to catch with the senses or the mind 11. be set at a disadvantage. 
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241. It is all too easy to lose sight of what is happening on our own doorstep.
242. The deal was a long shot, but Bagley had little to lose.
243. I'm trying to lose weight, so I'm keeping count of the number of calories I eat every day.
244. If you don't do it soon you're going to lose the opportunity.
245. It never crossed my mind that she might lose .
246. He was very cool and calm about the mishap, and didn't shout or lose his temper.
247. Win or lose, the important thing is to remain calm.
248. This is something where you can earn such a lot of money that there is not any risk that you will lose it.
249. If you want to be slim, you should try to lose a certain amount of weight every week.
250. If she divorced Tony, she would lose the respectability she had as Mrs Tony Tatterton.
251. The bank expects to lose £703 million of last year's profits as a result of bad debts.
252. If I lose this job, we can forget about buying a new car.
253. If we lose this game, we're out of the championship.
254. She has cut out fat altogether in an effort to lose weight.
255. Sunscreen can lose its potency if left over winter in the bathroom cabinet.
256. Workers who don't take up training may lose out on promotion.
257. What you lose in income you will gain in experience.
258. They lose their entitle-ment to benefit when they start work.
259. He put on weight and started to lose his looks.
260. She's worried about having children because she doesn't want to get stretchmarks or lose her figure.
261. He didn't want to lose his life in the battle field.
262. It's a case of Hobson's choice, because if I don't agree to their terms[sentencedict.com], I'll lose my job.
263. I've never seen him get cross or lose his temper.
264. Diana was determined not to lose her temper with him.
265. Babies lose heat much faster than adults, and are especially vulnerable to the cold in their first month.
266. Governments often lose momentum in their second term of office.
267. I'm only a few kilos overweight, but I just can't seem to lose them.
268. BBC viewers saw the prime minister lose his cool on last night's 'Question Time'.
269. He had a terrible temper, and sometimes he would completely lose control.
270. Exercise is an important ally in your campaign to lose weight.