hum

1 of 2

verb

hummed; humming

intransitive verb

1
a
: to utter a sound like that of the speech sound \m\ prolonged
humming along with the music
b
: to make the natural noise of an insect in motion or a similar sound : drone
listening to the bees hum in the garden
c
: to give forth a low continuous blend of sound
the sound of children's voices with which the house was always hummingJ. M. Brinnin
2
a
: to be busily active
the museum hummed with visitors
b
: to run smoothly
the business started to hum

transitive verb

1
: to sing with the lips closed and without uttering speech sounds distinctly
hum a tune
2
: to express by making a vocal sound with the lips pressed together : to affect by humming
hummed his displeasure
hum noun
hummable adjective

hum

2 of 2

chiefly British spelling of hem entry 3, hem entry 4

Examples of hum in a Sentence

Verb The garden was humming with bees. The refrigerator hummed in the background. I was humming to myself. We hummed along to the music. I hummed a little song. By noon, the office was really humming. The restaurant hums on weekends.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Verb
Just a 10-minute stroll from the city center, the elevation affords something akin to a retreat; Bolaño feels spirited away from the noisy streets, surrounded instead by humming cicadas and chirping birds. Keith Flanagan, Architectural Digest, 11 Sep. 2025 Anybody who thought the Detroit Lions would come into the season with new coordinators on both sides of the ball and keep humming along was in for a rude awakening. Saad Yousuf, New York Times, 11 Sep. 2025 But with the wheels realigned and the engine humming again, the Broncos now have to sit in neutral. Shaun Goodwin, Idaho Statesman, 9 Sep. 2025 The porch smells faintly of lime and ginger, and the house hums the way houses do when a good conversation has just ended. Gina Pace, Forbes.com, 8 Sep. 2025 See All Example Sentences for hum

Word History

Etymology

Verb

Middle English hummen; akin to Middle High German hummen to hum, Middle Dutch hommel bumblebee

First Known Use

Verb

14th century, in the meaning defined at intransitive sense 1a

Time Traveler
The first known use of hum was in the 14th century

Browse Nearby Words

Cite this Entry

“Hum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hum. Accessed 14 Sep. 2025.

Kids Definition

hum

verb
ˈhəm
hummed; humming
1
a
: to utter a continuous \m\ sound
b
: to make the natural buzzing sound of an insect in motion or a sound like it : drone
c
: to give forth a low continuous blend of sound
2
: to produce musical tones while keeping the lips closed
3
: to be busily active
the place was humming
hum noun
hummer noun

Medical Definition

hum

noun
: a sound like that made by humming
especially : venous hum

More from Merriam-Webster on hum

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