Đồng nghĩa của know one's business

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capital deluxe choice well credentialed first class good enough dominant artistic well versed impeccably credentialed well up credentialed licensed chartered sensational sik exo tremendous easy ultraefficient crafty certificated responsible forward mature supremely skilled feasible up to scratch faultless immaculate flawless impeccable pure adept physically top-shelf rad phat schmick clever with one's hands good with one's hands highly endowed topnotch distinguished star clean creative killer useable working realizable realisable hyperefficient practicable cut out for having a knack for receptive authorized know one's onions grounded quick-thinking adapted out of the ordinary admirable noteworthy very able licenced proved instructed tried authorised accepted know backwards and forwards have the goods ahead of one's peers have smarts old beyond one's years got it advanced for one's age exquisite sublime glorious introduced mindful prompt heavenly sensitive teachable mega mighty banging 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skilled in proficient in in control well up on au fait with competent at experienced in conversant with confident with big time clear-sighted having been around clear-eyed worldly-wise major league of use robust stupendous big-league of value ultimate major-league major important energetic number-one big-time efficacious prescient earth-shattering epoch-making splendorous skookum earthshaking privy omniscient posted down appreciative up to date in the loop switched on with an understanding of with a knowledge of

know one's onions know one's stuff know one's way around knows knows about knows again know one's ass from a hole in the ground known which end is up known what to do known what's what known what one is about known what makes someone tick