Definitions of nod:

  • noun:   the act of nodding the head
  • noun:   a sign of assent or salutation or command
  • verb:   be almost asleep
    Example: "The old man sat nodding by the fireplace"
  • verb:   let the head fall forward through drowsiness
    Example: "The old man was nodding in his chair"
  • verb:   lower and raise the head, as to indicate assent or agreement or confirmation
    Example: "The teacher nodded when the student gave the right answer"
  • verb:   express or signify by nodding
    Example: "He nodded his approval"
  • verb:   sway gently back and forth, as is in a nodding motion
    Example: "The flowers were nodding in the breeze"