1. (verb)nod to move your head up and then down, especially to agree or give a signal If I don't understand, I usually just nod and smile politely.; He nodded toward the exit to tell me we should leave.
Definition of 'Nod'
Webster Dictionary
1. (noun)Nod a dropping or bendingforward of the upper oart or top of anything
2. (noun)Nod a quick or slight downward or forward motion of the head, in assent, in familiar salutation, in drowsiness, or in giving a signal, or a command
3. (verb)Nod to bend or incline the upper part, with a quick motion; as, nodding plumes
4. (verb)Nod to incline the head with a quick motion; to make a slight bow; to make a motion of assent, of salutation, or of drowsiness, with the head; as, to nod at one
5. (verb)Nod to be drowsy or dull; to be careless
6. (verb)Nod to incline or bend, as the head or top; to make a motion of assent, of salutation, or of drowsiness with; as, to nod the head
7. (verb)Nod to signify by a nod; as, to nod approbation
Sense: to make a quick forward and downward movement of the head to show agreement, as a greeting etc I asked him if he agreed and he nodded (his head); He nodded to the man as he passed him in the street.