Wiktionary
hummings
n. (plural of humming English)
Usage examples of "hummings".
Then there would be running noises, hummings, squeals as of slaughtered belts or gears, and light would come again, only to go off again when it was most inconvenient.
These hummings assured whoever or whatever was out yonder that the inhabitants of Earth could count.
Bold bard will welcome us with meetings and greetings, with merry hummings and strummings!