ご存知
Meanings
1
knowing; being aware of
Respectful expression used for what the listener or a respected third person knows. It is commonly used as ご存じです, ご存じだ, ご存じのとおり, and similar patterns; avoid using it for the speaker's own knowledge.
Do you know about this matter?
As you know, the meeting starts at three in the afternoon.
2
acquaintance; someone one knows
Less central than the 'knowing' sense. Most natural in polite noun phrases such as ご存じの方, meaning a person known to the listener or another respected person; 知り合い is the ordinary everyday word for an acquaintance.
If you know someone, please introduce them.
Usage patterns
- 〈事〉をご存知ですかDo you know about ~? (polite)
Do you know about this shop?
- ご存知の方a person you happen to know (polite)
Is there anyone here who knows about this matter?
- 〈事〉はご存知でしょうyou probably already know ~ (polite guess)
You probably already know that Mr. Tanaka moved.
Expressions
- ご存知の通りas you know; as you are aware