To nod repeatedly.
The head; the part of the body of an animal or human which contains the brain, mouth and main sense organs.
The head as the seat of mental capacity or intellect.
to cognize again
To match (something or someone which one currently perceives) to a memory of some previous encounter with the same person or thing.
To realize or discover the nature of something; apprehend quality in.
To show formal appreciation of, as with an award, commendation etc.
To have the property to bind to specific antigens.
To acknowledge or consider (as being a certain thing or having a certain quality or property).
To acknowledge the existence or legality of; to treat as valid or worthy of consideration.