nod

♦ nod /n'ɒd/ (nods nodding nodded)
1 [VERB] no passive, V, V n, V with quote
If you nod, you move your head downwards and upwards to show that you are answering `yes' to a question, or to show agreement, understanding, or approval.
`Are you okay?' I asked. She nodded and smiled...
Jacques tasted one and nodded his approval...
`Oh, yes,' she nodded. `I understand you very well.'
[N-COUNT] usu a N
Nod is also a noun.
She gave a nod and said, `I see'...
He gave Sabrina a quick nod of acknowledgement.
2 [VERB] no passive, V prep, V to n to-inf
If you nod in a particular direction, you bend your head once in that direction in order to indicate something or to give someone a signal.
`Does it work?' he asked, nodding at the piano...
He lifted the end of the canoe, nodding to me to take up mine.
3 [VERB] no passive, V, V n, V at/to n, V n to n
If you nod, you bend your head once, as a way of saying hello or goodbye.
All the girls nodded and said `Hi'...
Tom nodded a greeting but didn't say anything...
Both of them smiled and nodded at friends...
They nodded goodnight to the security man.
4 [VERB] V n adv/prep
In football, if a player nods the ball in a particular direction, they hit the ball there with their head. (BRIT INFORMAL)
Taylor leapt up to nod the ball home...
= headnod off
[PHRASAL VERB] V P, V P to n
If you nod off, you fall asleep, especially when you had not intended to. (INFORMAL)
The judge appeared to nod off yesterday while a witness was being cross-examined...
He was nodding off to sleep in an armchair.
= doze off

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