hum

definition: a humming noise
example: the hum of distant traffic
speech part: noun
synonyms: humming
definition: the state of being or appearing to be actively engaged in an activity
example:
speech part: noun
synonyms: busyness
definition: sing with closed lips
example: The chorus hummed a melody.
speech part: verb
synonyms:
definition: make a low continuous sound
example: The refrigerator is humming
speech part: verb
synonyms:
definition: sound with a monotonous hum
example:
speech part: verb
synonyms: thrum
definition: be noisy with activity
example:
speech part: verb
synonyms: buzz

hum is explained and pronounced

How hum is being used?