nod off
nod
noun[ Cusually sing ]
us/nɑd/
a movement of the head down and then up again quickly:
He gave her a nod of recognition.

Examples of nod

nod
Past efforts to train physicians have emphasized a concept of professionalism with a predominant emphasis on autonomy and benefit (with a lesser nod to justice).
Before the concert they give a few perfunctory nods or make no expression at all.
For instance, agreeing and refusing can be expressed gesturally by nodding or shaking one's head.
The poem also nods towards the bucolic realm in its use of the pathetic fallacy, where elements of nature are imbued with feeling.
The book does nod in the direction of another very different sort of elucidation.
The types of behaviors we included were : points or other waves to the object and head nods to the direction of the object.
Moreover, though there are none of the tiresome, now seemingly obligatory nods in the direction of modish theorists, this is sophisticated narrative history.
Presenters rely on jurors' nods, disapprovals, verbal reactions and other gestural cues as guides for tailoring their presentations.
They also give at least a nod toward the notion that innate architectures coordinate readings of cost-benefit analyses of competing choices.
They acknowledge the veterans carrying the flags, who stand quietly, nodding, growing weary of their burdens.
Although there is always a nod toward this sort of diversity, the concentric circles model is not very good at dealing with it.
Gesturally, adults sharply bob back their heads or nod rhythmically to infants, again presenting an exaggeration of head movements that conventionally signal affiliation in adults.
Some group research interviews were undertaken, and when a summarising label was used by one resident, the others usually nodded in agreement.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.