humming
 (a.)發嗡嗡聲的;哼唱的;活潑的
 Hum v. i. [imp. & p. p. Hummed p. pr. & vb. n. Humming ]
 1. To make a low, prolonged sound, like that of a bee in flight; to drone; to murmur; to buzz; as, a top hums.
    Still humming on, their drowsy course they keep.   --Pope.
 2. To make a nasal sound, like that of the letter m prolonged, without opening the mouth, or articulating; to mumble in monotonous undertone; to drone.
 The cloudy messenger turns me his back,
 And hums.   --Shak.
 3.  To make an inarticulate sound, like h'm, through the nose in the process of speaking, from embarrassment or a affectation; to hem.
 4. To express satisfaction by a humming noise.
    Here the spectators hummed.   --Trial of the Regicides.
 Note: ☞ Formerly the habit of audiences was to express gratification by humming and displeasure by hissing.
 5. To have the sensation of a humming noise; as, my head hums, -- a pathological condition.
 Hum·ming a. Emitting a murmuring sound; droning; murmuring; buzzing.
 Hum·ming, n. A sound like that made by bees; a low, murmuring sound; a hum.
 Hummingale, lively or strong ale. --Dryden.
 Humming-bird moth Zool., a hawk moth. See Hawk moth, under Hawk, the bird.
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 humming
      See hum
 hum
      n 1: the state of being or appearing to be actively engaged in an
           activity; "they manifested all the busyness of a pack of
           beavers"; "there is a constant hum of military
           preparation" [syn: busyness]
      2: an Islamic fundamentalist group in Pakistan that fought the
         Soviet Union in Afghanistan in the 1980s; now operates as
         a terrorist organization primarily in Kashmir and seeks
         Kashmir's accession by Pakistan [syn: Harkat-ul-Mujahidin,
          Harkat ul-Ansar, HUA, Harkat ul-Mujahedeen, Al
         Faran, Movement of Holy Warriors]
      3: a humming noise; "the hum of distant traffic" [syn: humming]
      v 1: sing with closed lips; "She hummed a melody"
      2: be noisy with activity; "This office is buzzing with
         activity" [syn: buzz, seethe]
      3: sound with a monotonous hum [syn: thrum]
      4: make a low continuous sound; "The refrigerator is humming"
      [also: humming, hummed]
 humming
      n 1: a humming noise; "the hum of distant traffic" [syn: hum]
      2: the act of singing with closed lips