Synonyms and related words :
abreast of, adept in, at home in, au courant, briefed, educated, enlightened, expert at, good at, handy at, informed, instructed, master of, posted, primed, proficient in, schooled, skilled in, strong in, taught, trained, up on, up-to-date, versed, versed in, well up on, well-educated, well-grounded, well-informed, well-posted, well-read, widely read