Meaning & use
hum
To make a continuous low murmuring sound, or to sing a tune with closed lips.
See it in a sentence
The refrigerator began to hum loudly in the quiet kitchen at night.
She likes to hum old lullabies while she works in the garden.
A note on using this word
Hum can describe machinery noise or a wordless tune; context usually makes the intended sense clear.
Words with a similar meaning
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