What does the word nod mean?

Usage examples for nod

  1. Mrs. Twist, after an instant's astonishment at this unexpected support, bowed her head- it could hardly be called a nod- in her son's direction. – Christopher and Columbus by Countess Elizabeth Von Arnim
  2. He smiled and dismissed them with a nod as the doctor entered. – The Boy Scouts on a Submarine by Captain John Blaine
  3. Malcolm Sage took it and with a nod proceeded to fill his pipe. – Malcolm Sage, Detective by Herbert George Jenkins