lose

verb

1. fail to keep or to maintain; cease to have, either physically or in an abstract sense

   verb.possession

   Antonyms hold on keep

   Source: WordNet 3.0

2. fail to win

   verb.competition

   Antonyms win

   Source: WordNet 3.0

3. suffer the loss of a person through death or removal

   verb.emotion

   Source: WordNet 3.0

4. place (something) where one cannot find it again

   verb.contact

   Synonyms mislay misplace

   Source: WordNet 3.0

5. miss from one's possessions; lose sight of

   verb.possession

   Antonyms find regain

   Source: WordNet 3.0

6. allow to go out of sight

   verb.perception

   Source: WordNet 3.0

7. fail to make money in a business; make a loss or fail to profit

   verb.possession

   Synonyms turn a loss

   Antonyms break even

   Source: WordNet 3.0

8. fail to get or obtain

   verb.possession

   Antonyms acquire gain win

   Source: WordNet 3.0

9. retreat

   verb.competition

   Synonyms drop off fall back fall behind recede

   Antonyms advance gain gain ground get ahead make headway pull ahead win

   Source: WordNet 3.0

10. fail to perceive or to catch with the senses or the mind

    verb.perception

    Synonyms miss

    Source: WordNet 3.0

11. be set at a disadvantage

    verb.change

    Synonyms suffer

    Source: WordNet 3.0

12. To part with unintentionally or unwillingly, as by accident, misfortune, negligence, penalty, forfeit, etc.; to be deprived of; as, to <i>lose</i> money from one's purse or pocket, or in business or gaming; to <i>lose</i> an arm or a leg by amputation; to <i>lose</i> men in battle.

    verb

    Source: webster1913

13. To suffer loss, disadvantage, or defeat; to be worse off, esp. as the result of any kind of contest.

    verb

    Source: webster1913