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noun
a sign of assent or salutation or command
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"The old man sat nodding by the fireplace"
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verb
express or signify by nodding
"He nodded his approval"
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verb
lower and raise the head, as to indicate assent or agreement or confirmation
"The teacher nodded when the student gave the right answer"
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verb
sway gently back and forth, as in a nodding motion
"the flowers were nodding in the breeze"
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noun
the act of nodding the head
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let the head fall forward through drowsiness
"The old man was nodding in his chair"