lack

lack (http://definr.com/lack)

     n : the state of needing something that is absent or
         unavailable; "there is a serious lack of insight into the
         problem"; "water is the critical deficiency in desert
         regions"; "for want of a nail the shoe was lost" [syn: deficiency,
          want]
     v 1: be without; "This soup lacks salt"; "There is something
          missing in my jewellery box!" [syn: miss] [ant: have]
     2: be without, lack; be deficient in; "want courtesy"; "want
        the strength to go on living"; "flood victims wanting food
        and shelter" [syn: want]