Answer: acknowledge

AnswerCrossword Clue
acknowledgeAccept or admit the existence or truth of
acknowledgeExpress or display gratitude for or appreciation of
acknowledgeConfirm (receipt of something)
acknowledgeAccept the validity or legitimacy of
acknowledgeShow that one has noticed or recognized (someone) by making a gesture or greeting
acknowledge(of a body of opinion) Recognize the fact or importance or quality of
acknowledgeto recognize the rights, authority, or status of