To of or admit the knowledge of; to recognize as a
fact or truth; to declare one’s belief in; as, to acknowledge the being
of a God.

To own or recognize in a particular character or
relationship; to admit the claims or authority of; to give recognition
to.

To own with gratitude or as a benefit or an
obligation; as, to acknowledge a favor, the receipt of a letter.

To own as genuine; to assent to, as a legal
instrument, to give it validity; to avow or admit in legal form; as, to
acknowledgea deed.