Synonym: bend, bob, bow, signal, tip. Similar words: no doubt. Meaning: [nɑd /nɒd] 
n. 1. a sign of assent or salutation or command 2. the act of nodding the head. v. 1. express or signify by nodding 2. lower and raise the head, as to indicate assent or agreement or confirmation 3. let the head fall forward through drowsiness 4. sway gently back and forth, as is in a nodding motion 5. be almost asleep.
n. 1. a sign of assent or salutation or command 2. the act of nodding the head. v. 1. express or signify by nodding 2. lower and raise the head, as to indicate assent or agreement or confirmation 3. let the head fall forward through drowsiness 4. sway gently back and forth, as is in a nodding motion 5. be almost asleep. 
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61. He turned with a little nod and I watched him walk away.
62. He intimated his wishes with a slight nod of his head.
63. He acknowledged our presence with a nod of his head.
64. Among the audience, eyes glazed over and a few heads started to nod.
65. He thanks Paul with a curt nod.
66. The experts nod across the seminar table.
67. He gave a nod and checked her over.
68. It seemed an utterly uncharacteristic nod to clean living.
69. It had been a gesture, a nod towards civilizing him.
70. Thompson discounted the possibility that Dole would give him the nod.
71. They vary from a brief head nod or sagging of the body to a full-blown fall with injury.
72. A discreet nod indicated that he was ready to leave.
73. Fleet/Norstar got the nod over the larger Bank of Boston for two reasons.
74. The way to deal with him at such moments was to nod approvingly and pray such ideas would be forgotten.
75. On the sixth day, after a curt nod from the chef,[http://sentencedict.com/nod.html] Mark realised he must be doing something half-right.
76. "That's my boss,'' he said, indicating with a nod of his head.
77. On occasion, she would meet Ted's eyes, and he would wink, and nod his head encouragingly.
78. The waiter, Helen thought, was only waiting for the nod and he would turn cartwheels.
79. Then, with a great effort, she managed to nod her head in vague agreement.
80. There was no farewell kiss, merely a nod of mutual understanding.
81. Credibility, as we now know, gets not the slightest nod from me, even in passing.
82. Of the 26 voters who participated last week, Skip Away received the nod from 15.
83. Sally Baker gave a complimentary nod as Tess reappeared from upstairs.
84. At a nod from Delaney, Forster gently turned the handle.
85. Mould, though, goes out with a sly nod towards the future.
86. Most heads nod in assent; one or two want to keep on with their writing.
87. Just a few words, but there was a nod of understanding, the briefest pause, before the two men stood.
88. He looked at me as though he had seen me somewhere before, but I passed by with a curt nod.
89. A younger woman with outsize spectacles behind them periodically gave a slight nod of her head.
90. Stephen gave an absent-minded nod and hurried off to solve the next problem.
More similar words: no doubt.