Synonym: activate, busy, buzz, drone, murmur. Similar words: hump, human, humid, thumb, humor, exhume, humble, humbly. Meaning: [hʌm] 
n. 1. the state of being or appearing to be actively engaged in an activity 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 3. a humming noise. v. 1. sing with closed lips 2. be noisy with activity 3. sound with a monotonous hum 4. make a low continuous sound.
n. 1. the state of being or appearing to be actively engaged in an activity 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 3. a humming noise. v. 1. sing with closed lips 2. be noisy with activity 3. sound with a monotonous hum 4. make a low continuous sound. 
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61. Jaq heard the crackling hum of the sword, smelled ozone.
62. With the same amp settings the low hum single coils sing with almost the character of a Gibson P90.
63. This model gave off a steady hum that allowed it to be used indoors without disturbance to neighbours.
64. In the yew trees nearby, birds sang and the hum of traffic and smell of exhaust fumes carried on the air.
65. You can imagine my surprise, then, when Pikey, without prior warning, started to hum like a top.
66. But apart from the gentle, almost mesmeric, hum of the bees, all was silent and still.
67. They were indistinct at first, like the hum of conversation at a drinks party.
68. The only sound is the low hum of the air conditioner.
69. A cricket joins in, one of the lamps hums a low hum, but what I want to hear is Margaret.
70. I don't understand how anyone so musical can hum so out of tune with himself.
71. Far enough for the noise of the city to be a distant hum, near enough to hear its pulse beating.
72. The steady hum of the drilling rigs and the rough growls of heavy machinery moving on the road smear the coastal quiet.
73. The voice sings along with the song, then turns into a hum.
74. Behind him the engine of his new red Rover was still running - a barely audible hum.
75. One of the three khthons began to hum a sorrowful melody.
76. The minutes dragged while they listened for the first hum of the approaching helicopter.
77. The soft twittering hum came from birds going to roost.
78. The hum in the air was from pylons; a cold and nervous electrical hum.
79. Upon awakening[sentencedict.com], I was stirred by the muted chug and hum of the neighbour's Cadillac.
80. She heard the hum of pleasant voices, and guessed she must be last down.
81. He began to hum a tune, dissociating himself, rolling a cigarette with easy movements.
82. Piper leaned backwards, staggering, and watched the room revolve until his brain seemed to hum with the motion.
83. Hum, has your Dou ever got that white fox?
84. Within the lounge the peaceful hum of conversation stopped.
85. They began to hum activities after Christmastide.
86. " Hum,(Sentencedict.com ) lost your job again?
87. There was a general hum of conversation around them.
88. She heard the hum of voices in the house.
89. The question - posed with dramatic rhetoric - produced a hum of approval from spectators.
90. It's very real, this earthly hum, so strong that it sometimes draws me unwillingly from my book, capturing my gaze with the 2000-year-old stone fences that crosshatch the entire island.
More similar words: hump, human, humid, thumb, humor, exhume, humble, humbly, humane, subhuman, sorghum, thumbs up, humdrum, superhuman, humanism, humorous, humility, humiliate, humankind, human race, posthumous, humiliated, dehumanize, rule of thumb, humiliation, human rights, hummingbird.