acknowledge
verbUK /əkˈnɒl.ɪdʒ/
US /əkˈnɑː.lɪdʒ/
To show that you know something is there or that it is true.
She smiled to acknowledge that she had heard me.
RELATED WORDS
OTHER MEANINGS
2. To say hello to someone or show you have seen them.
He nodded to acknowledge the neighbor across the street.
3. To let someone know that you received something they sent.
Please acknowledge receipt of this letter.
4. To say thank you for something someone did.
The mayor acknowledged the volunteers for their hard work.