Familiar, as by study or experience: conversant with medieval record.
in a position to converse knowledgeably: "By ... utilizing a library of one's personal design, there are yourself much more knowledgeable and, in the course of time, more conversant, on subjects interesting for you” ( Tom Kelley).
closely familiar; present; having regular interaction
familiar or acquainted by use or research; well-informed; versed
Having frequent or customary sexual intercourse; familiary linked; intimately familiarized.
Familiar or acquainted by use or study; well-informed; versed; -- generally used in combination with with, occasionally with in.
(usually followed by `with') knowledgeable about or understanding completely