nod /ˈnɑd/
 點頭,打盹,擺動(vi.)點頭,打盹(vt.)點頭表示,點(頭)
 Nod v. i.
 1. To bend or incline the upper part, with a quick motion; as, nodding plumes.
 2. To incline the head with a quick motion; to make a slight bow; to make a motion of assent, of salutation, or of drowsiness, with the head; as, to nod at one.
 3. To be careless or inattentive; to make a mistake from lack of attention.
    Nor is it Homer nods, but we that dream.   --Pope.
 Nod, v. t. [imp. & p. p. Nodded p. pr. & vb. n. Nodding.]
 1. To incline or bend, as the head or top; to make a motion of assent, of salutation, or of drowsiness with; as, to nod the head.
 2. To signify by a nod; as, to nod approbation.
 3. To cause to bend. [Poetic]
    By every wind that nods the mountain pine.   --Keats.
 Nod n.
 1. A dropping or bending forward of the upper part or top of anything.
 Like a drunken sailor on a mast,
 Ready with every nod to tumble down.   --Shak.
 2. A quick or slight downward or forward motion of the head, in assent, in familiar salutation, in drowsiness, or in giving a signal, or a command; as, a nod of approval.
    A look or a nod only ought to correct them [the children] when they do amiss.   --Locke.
    Nations obey my word and wait my nod.   --Prior.
 The land of Nod, sleep.
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 nod
      n 1: a sign of assent or salutation or command
      2: the act of nodding the head
      v 1: express or signify by nodding; "He nodded his approval"
      2: lower and raise the head, as to indicate assent or agreement
         or confirmation; "The teacher nodded when the student gave
         the right answer"
      3: let the head fall forward through drowsiness; "The old man
         was nodding in his chair"
      4: sway gently back and forth, as is in a nodding motion; "the
         flowers were nodding in the breeze"
      5: be almost asleep; "The old man sat nodding by the fireplace"
      [also: nodding, nodded]
 Nod
    exile; wandering; unrest, a name given to the country to which
    Cain fled (Gen.4:16). It lay on the east of Eden.
 Nod, vagabond; fugitive