An instance of inclining the head up and down, as to indicate agreement, or as a cursory greeting.
A reference or allusion to something.
A nomination.
Approval.
To incline the head up and down, as to indicate agreement.
To briefly incline the head downwards as a cursory greeting.
To sway, move up and down.
To gradually fall asleep.
To signify by a nod.
To make a mistake by being temporarily inattentive or tired
To head; to strike the ball with one's head.
To allude to something.
To fall asleep while under the influence of opiates.