Overview of noun hum

The noun hum has 3 senses

• busyness, hum -- (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")


• Harkat-ul-Mujahidin, HUM, Harkat ul-Ansar, HUA, Harkat ul-Mujahedeen, Al Faran, Movement of Holy Warriors -- (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)


• hum, humming -- (a humming noise; "the hum of distant traffic")

Overview of verb hum

The verb hum has 4 senses

• hum -- (sing with closed lips; "She hummed a melody")


• hum, buzz, seethe -- (be noisy with activity; "This office is buzzing with activity")


• hum, thrum -- (sound with a monotonous hum)


• hum -- (make a low continuous sound; "The refrigerator is humming")