conversant

perillä jstk closely familiar; current; having frequent interaction
familiar or acquainted by use or study; well-informed; versed

She is equally conversant with Shakespeare and the laws of physics.

deeply conversant in the Platonic philosophy

He uses the different dialects as one who had been conversant with them all.

If any think education, because it is conversant about children, to be but a private and domestick duty, he has been ignorantly bred himself.