|1.||[ verb ] (music) sing with closed lips|
"She hummed a melody"
|Related terms:||sing hummer|
|2.||[ verb ] sound with a monotonous hum|
|3.||[ verb ] make a low continuous sound|
"The refrigerator is humming"
|4.||[ verb ] be noisy with activity|
"This office is buzzing with activity"
|Related terms:||be teem buzz|
|5.||[ noun ] (politics) 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|
|Synonyms:||harkat-ul-mujahidin harkat_ul-ansar harkat_ul-mujahedeen hua movement_of_holy_warriors al_faran|
|Related terms:||foreign_terrorist_organization Pakistan|
|6.||[ noun ] 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"
|7.||[ noun ] a humming noise|
"the hum of distant traffic"