noun the state of being or appearing to be actively engaged in an activity.
— synonyms: busyness
noun an Islamic fundamentalist group in Pakistan that fought the Soviet Union in Afghanistan in the 1980s.
— synonyms: Harkat-ul-Mujahidin, Harkat_ul-Ansar, HUA, Harkat_ul-Mujahedeen, Al_Faran, Movement_of_Holy_Warriors
noun a humming noise.
— synonyms: humming
verb sing with closed lips.
verb be noisy with activity.
— synonyms: buzz, seethe
verb sound with a monotonous hum.
— synonyms: thrum
verb make a low continuous sound.
Examples
“Hmm... I just can't decide between the two.”
“Just where were you until 2 a.m.? Hmm?”
“They could hear a hum coming from the kitchen, and found the dishwasher on.”