1. Lower and raise the head, as to indicate assent, agreement or confirmation
   "The teacher nodded when the student gave the right answer"
    
2. Express or signify by nodding
   "He nodded his approval"
    
3. Sway gently back and forth, as in a nodding motion
   "the flowers were nodding in the breeze"
    
4. Let the head fall forward through drowsiness
   "The old man was nodding in his chair"
    
5. Be almost asleep
   "The old man sat nodding by the fireplace"

1. A sign of assent, salutation or command
   "The teacher gave a nod of approval to the student's answer"
    
2. The act of nodding the head
   "His nod of approval was all we needed"

Derived forms: nodded, nodding, nods

Type of: communicate, drowse, gesticulate, gesture, inclination, inclining, intercommunicate, motion, move

Encyclopedia: Nod