Definition of acknowledge

• declare to be true or admit the existence or reality or truth of; "He admitted his errors"; "She acknowledged that she might have forgotten"
• report the receipt of; "The program committee acknowledged the submission of the authors of the paper"
• express recognition of the presence or existence of, or acquaintance with; "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 ones own writing"