Source : Webster's Revised Unabridged Dictionary (1913)

Conversance \Con"ver*sance\, n.
   The state or quality of being conversant; habit of
   familiarity; familiar acquaintance; intimacy. [R.]

Source : WordNet®

conversance
     n : personal knowledge or information about someone or something
         [syn: {acquaintance}, {familiarity}, {conversancy}]