Example : He admitted his errors.
She acknowledged that she might have forgotten.

Synonyms : admit

Example : The program committee acknowledged the submission of the authors of the paper.

Synonyms : receipt

Example : He never acknowledges his colleagues when they run into him in the hallway.
She acknowledged his complement with a smile.
It is important to acknowledge the work of others in one's own writing.

Synonyms : notice

Example : We must acknowledge the kindness she showed towards us.

Synonyms : recognise, recognize

Example : Acknowledge the deed.

Example : The Crown Prince was acknowledged as the true heir to the throne.
We do not recognize your gods.

Synonyms : know, recognise, recognize