1. nod - Noun
2. nod - Verb
To bend or incline the upper part, with a quick motion; as, nodding plumes.
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.
To be drowsy or dull; to be careless.
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.
To signify by a nod; as, to nod approbation.
To cause to bend.
A dropping or bending forward of the upper oart or top of anything.
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.
Source: Webster's dictionaryThe old man sat nodding by the fireplace Source: Internet
The old man was nodding in his chair Source: Internet
The teacher nodded when the student gave the right answer Source: Internet
He nodded his approval Source: Internet
the flowers were nodding in the breeze Source: Internet
A base of creepy synths nod to horror movie scores, while shadowy disco beats vampirize the early millennium disco of Justice ("Bloody Valentine"). Source: Internet