Meaning of the word "I know" in English

What does "I know" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

I know

US /aɪ noʊ/
UK /aɪ nəʊ/

Phrase

1.

used to express agreement or understanding

Example:
It's a tough situation, I know.
You must be tired. I know how you feel.
2.

used to acknowledge a statement, often with a sense of shared experience or empathy

Example:
The traffic was terrible today. — I know, it took me an hour to get here.
This movie is so sad. — Oh, I know!