What is the meaning of nodding?

verb

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

adjective

• Having branches or flower heads that bend downward.
  • usage: "nodding daffodils"; "the pendulous branches of a weeping willow"; "lilacs with drooping panicles of fragrant flowers"
  • synonyms: cernuous, drooping, pendulous, weeping