a sign of assent or salutation or command
"When the teacher asked if everyone understood the instructions, she received an enthusiastic nod from every student in the class."
the act of nodding the head
"She nodded her head to signal that she was ready to begin the presentation."
An instance of inclining the head up and down, as to indicate agreement, or as a cursory greeting.
"After the appellate court denied his claim for disability compensation, he was required to file a NOD within thirty days to preserve his right to appeal further."
Initialism of notice Of disagreement; filed by an appellant in response to a denial of veteran's benefits in United States law.
lower and raise the head, as to indicate assent or agreement or confirmation
"The teacher nodded when the student gave the right answer"
To incline the head up and down, as to indicate agreement.
"She nodded vigorously when I suggested we try that new restaurant for dinner."