| 1. | no longer possessed or retained: lost friends. |
| 2. | no longer to be found: lost articles. |
| 3. | having gone astray or missed the way; bewildered as to place, direction, etc.: lost children. |
| 4. | not used to good purpose, as opportunities, time, or labor; wasted: a lost advantage. |
| 5. | being something that someone has failed to win: a lost prize. |
| 6. | ending in or attended with defeat: a lost battle. |
| 7. | destroyed or ruined: lost ships. |
| 8. | preoccupied; rapt: He seems lost in thought. |
| 9. | distracted; distraught; desperate; hopeless: the lost look of a man trapped and afraid. |
| 10. | pt. and pp. of lose. |
| 11. | get lost, Slang.
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| 12. | lost to,
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verb, lost, los⋅ing.| 1. | to come to be without (something in one's possession or care), through accident, theft, etc., so that there is little or no prospect of recovery: I'm sure I've merely misplaced my hat, not lost it. |
| 2. | to fail inadvertently to retain (something) in such a way that it cannot be immediately recovered: I just lost a dime under this sofa. |
| 3. | to suffer the deprivation of: to lose one's job; to lose one's life. |
| 4. | to be bereaved of by death: to lose a sister. |
| 5. | to fail to keep, preserve, or maintain: to lose one's balance; to lose one's figure. |
| 6. | (of a clock or watch) to run slower by: The watch loses three minutes a day. |
| 7. | to give up; forfeit the possession of: to lose a fortune at the gaming table. |
| 8. | to get rid of: to lose one's fear of the dark; to lose weight. |
| 9. | to bring to destruction or ruin (usually used passively): Ship and crew were lost. |
| 10. | to condemn to hell; damn. |
| 11. | to have slip from sight, hearing, attention, etc.: to lose him in the crowd. |
| 12. | to stray from or become ignorant of (one's way, directions, etc.): to lose one's bearings. |
| 13. | to leave far behind in a pursuit, race, etc.; outstrip: She managed to lose the other runners on the final lap of the race. |
| 14. | to use to no purpose; waste: to lose time in waiting. |
| 15. | to fail to have, get, catch, etc.; miss: to lose a bargain. |
| 16. | to fail to win (a prize, stake, etc.): to lose a bet. |
| 17. | to be defeated in (a game, lawsuit, battle, etc.): He has lost very few cases in his career as a lawyer. |
| 18. | to cause the loss of: The delay lost the battle for them. |
| 19. | to let (oneself) go astray, miss the way, etc.: We lost ourselves in the woods. |
| 20. | to allow (oneself) to become absorbed or engrossed in something and oblivious to all else: I had lost myself in thought. |
| 21. | (of a physician) to fail to preserve the life of (a patient). |
| 22. | (of a woman) to fail to be delivered of (a live baby) because of miscarriage, complications in childbirth, etc. |
| 23. | to suffer loss: to lose on a contract. |
| 24. | to suffer defeat or fail to win, as in a contest, race, or game: We played well, but we lost. |
| 25. | to depreciate in effectiveness or in some other essential quality: a classic that loses in translation. |
| 26. | (of a clock, watch, etc.) to run slow. |
| 27. | lose out, to suffer defeat or loss; fail to obtain something desired: He got through the preliminaries, but lost out in the finals. |
| 28. | lose face. face (def. 48). |

lost (lôst, lŏst) v. Past tense and past participle of lose. adj.
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lost
In addition to the idioms beginning with lost, also see get lost; he who hesitates is lost; make up for lost time; no love lost; you've lost me. Also see lose.