Mothers are more likely than fathers to acknowledge their children's contributions in conversation.

My father wouldn't acknowledge him, and they were old friends.

Her father acknowledged her as his daughter when she was 16.

My father has not acknowledged me, and may never do it.

Although I'm not certain my father actually acknowledged us.

She knew that her mother and father acknowledged him.

How would he have felt if his father hadn't acknowledged him?

His father acknowledges that it was a suicide, though for reasons he doesn't want to think about.

Her father never even acknowledged that any such creature existed.

It was the first time her father had acknowledged his existence.