Definition of "nod"
verb:
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To incline the head up and down, as to indicate agreement.
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To sway, move up and down.
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To gradually fall asleep.
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To make a mistake by being temporarily inattentive or tired.
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To head; to strike the ball with one's head.
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To allude to something.
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To fall asleep while under the influence of opiates.
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noun:
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An instance of moving one's head as described above.
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A reference or allusion to something.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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