Overview of noun humming

The noun humming has 2 senses

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


• humming -- (the act of singing with closed lips)

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")