verb (v)

• fail to keep or to maintain; cease to have, either physically or in an abstract sense(verb.possession)

  Antonym:
  hold on, keep
  

  source: wordnet30
• fail to win(verb.competition)

  Antonym:
  win
  

  source: wordnet30
• suffer the loss of a person through death or removal(verb.emotion)

  source: wordnet30
• place (something) where one cannot find it again(verb.contact)

  Synonym:
  mislay, misplace
  

  source: wordnet30
• miss from one's possessions; lose sight of(verb.possession)

  Antonym:
  find, regain
  

  source: wordnet30
• allow to go out of sight(verb.perception)

  source: wordnet30
• fail to make money in a business; make a loss or fail to profit(verb.possession)

  Synonym:
  turn a loss
  Antonym:
  break even
  

  source: wordnet30
• fail to get or obtain(verb.possession)

  Antonym:
  acquire, gain, win
  

  source: wordnet30
• retreat(verb.competition)

  Synonym:
  drop off, fall back, fall behind, recede
  Antonym:
  advance, gain, gain ground, get ahead, make headway, pull ahead, win
  

  source: wordnet30
• fail to perceive or to catch with the senses or the mind(verb.perception)

  Synonym:
  miss
  

  source: wordnet30
• be set at a disadvantage(verb.change)

  Synonym:
  suffer
  

  source: wordnet30
• To part with unintentionally or unwillingly, as by accident, misfortune, negligence, penalty, forfeit, etc.; to be deprived of; as, to lose money from one's purse or pocket, or in business or gaming; to lose an arm or a leg by amputation; to lose men in battle.(verb)

  source: webster1913
• To suffer loss, disadvantage, or defeat; to be worse off, esp. as the result of any kind of contest.(verb)

  source: webster1913