up on

Adjective
1. being up to particular standard or level especially in being up to date in knowledge; "kept abreast of the latest developments"; "constant revision keeps the book au courant"; "always au fait on the latest events"; "up on the news"
(synonym) abreast of(p), au courant, au fait, up on(p)
(similar) informed

aware of, informed about, on top of Are you up on the latest computer games? Have you played UFOX?

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