Open English Wordnet
Nouns
(n)noda sign of assent or salutation or command (n)nodthe act of nodding the head Verbs
(v)nodexpress or signify by nodding“He nodded his approval” (v)nodlower and raise the head, as to indicate assent or agreement or confirmation“The teacher nodded when the student gave the right answer” (v)nodlet the head fall forward through drowsiness“The old man was nodding in his chair” (v)nodsway gently back and forth, as in a nodding motion“the flowers were nodding in the breeze” (v)nodbe almost asleep“The old man sat nodding by the fireplace”