Definitions

1. noun

A repetitive humming or buzzing sound, often associated with an engine or a musical instrument.

“The humhum of the old generator filled the entire neighborhood.”

2. verb

To make a low, continuous humming or buzzing sound, often with the intention of producing music.

“The musician hummed along to the melody, creating a soothing atmosphere.”

3. interjection

An expression of amusement or contentment, often accompanied by a low humming sound.

“Humhum, this cake is amazing!”