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.
To communicate (some fact or feeling); to bespeak, to indicate.
To communicate with one's voice, to say words out loud.
To understand (as though it were a language).
To have a conversation.
To utter.
To produce a sound; to sound.
To be able to communicate in a language.
Of a bird, to be able to vocally reproduce words or phrases from a human language.
To deliver a message to a group; to deliver a speech.
To be able to communicate in the manner of specialists in a field.
To communicate or converse by some means other than orally, such as writing or facial expressions.
Speech, conversation.
language, jargon, or terminology used uniquely in a particular environment or group.