칼러의 추천 화법: know

I know this.

To my best knowledge, this is what I know.

I understand what it meant.

Do you know this?

Are you familiar with this topic?

I know it.

I am aware of it.

I am sure of it.

I didn’t know the meeting was canceled.

I didn’t notice or realize the meeting was canceled.

I wasn’t informed the meeting was canceled.