versant (adjective) versant: familiar
Sinonime: abreast,
acquainted, apprised, at home with,
au courant, au fait,
aware,
cognizant,
conscious, conversant, grounded*, in on, in the know,
informed,
introduced, kept posted,
mindful, no stranger to, plugged in,
savvy*, tuned in, up on,
up*,
versed, versed in, well up in, with it