Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hum

3 senses of hum

Sense 1
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")
       => action, activity, activeness -- (the state of being active; "his sphere of activity"; "he is out of action")

Sense 2
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)
       INSTANCE OF=> terrorist organization, terrorist group, foreign terrorist organization, FTO -- (a political movement that uses terror as a weapon to achieve its goals)

Sense 3
hum, humming -- (a humming noise; "the hum of distant traffic")
       => noise -- (sound of any kind (especially unintelligible or dissonant sound); "he enjoyed the street noises"; "they heard indistinct noises of people talking"; "during the firework display that ended the gala the noise reached 98 decibels")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb hum

4 senses of hum

Sense 1
hum -- (sing with closed lips; "She hummed a melody")
       => sing -- (produce tones with the voice; "She was singing while she was cooking"; "My brother sings very well")

Sense 2
hum, buzz, seethe -- (be noisy with activity; "This office is buzzing with activity")
       => be -- (have the quality of being; (copula, used with an adjective or a predicate noun); "John is rich"; "This is not a good answer")

Sense 3
hum, thrum -- (sound with a monotonous hum)
       => sound, go -- (make a certain noise or sound; "She went `Mmmmm'"; "The gun went `bang'")

Sense 4
hum -- (make a low continuous sound; "The refrigerator is humming")
       => make noise, resound, noise -- (emit a noise)