#absence.lack  the state of being absent; "he was surprised by the absence of any explanation"
  exclusion:  #presence
  supertype:  #lack__deficiency__want  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"
  subtype:  #nonoccurrence  absence by virtue of not occurring
  subtype:  #awayness  the state of being elsewhere than in particular place

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