1 sometimes foll by: with on terms of familiarity but not intimacy
2 foll by: with having knowledge or experience (of); familiar (with)
English Collins Dictionary - English Definition & Thesaurus
alive to, apprised of, au fait, aware of, cognizant of, conscious of, conversant with, experienced in, familiar with, informed of, in on, knowledgeable about, privy to, up to speed with, versed in
English Collins Dictionary - English synonyms & Thesaurus
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