An honorific expression meaning 'to know' or 'to be aware of' (used respectfully; e.g., 'do you know...').
ご存じですか：この辺りに良いレストランはありますか？
Do you know if there are any good restaurants around here?
ご存じの方はのちほど会場の受付にお知らせください。
If anyone is aware (of it), please inform the reception desk later.
ご存じのとおり、会議は明日に延期になりました。
As you know, the meeting has been postponed until tomorrow.
その件についてはご存じでしたか？
Were you aware of that matter?
Used to refer to an acquaintance or someone one knows (as in 'someone you know').
ご存じの方がいらっしゃれば、ご紹介いただけますか？
If you know anyone, could you introduce them to me?
この問題に詳しいご存じの方は手を挙げてください。
If anyone knowledgeable about this issue is present, please raise your hand.