To admit the knowledge of; to recognize as a fact or truth; to declare one's belief in
To own as genuine or valid; to assent to (a legal instrument) to give it validity; to avow or admit in legal form.
To own or recognize in a particular quality, character or relationship; to admit the claims or authority of; to give recognition to.
To be grateful of (e.g. a benefit or a favour)
To report (the receipt of a message to its sender).
To concede as true; to acknowledge or assent to, as an allegation which it is impossible to deny (+ to).
To allow to enter; to grant entrance (to), whether into a place, into the mind, or into consideration
To give warrant or allowance, to grant opportunity or permission (+ of).
To allow (someone) to enter a profession or to enjoy a privilege; to recognize as qualified for a franchise.
To allow to enter a hospital or similar facility for treatment.
To be capable of; to permit. In this sense, "of" may be used after the verb, or may be omitted.