🇬🇧EN
hum
What's causing that hum?
🇬🇧EN
murmur
There was a murmur when she entered the room.
🇬🇧EN
whine
Don't just whine, do something!
🇬🇧EN
mutter
🇬🇧EN
squeal
A black limo rounded the corner with a squeal of tires.
🇬🇧EN
whimper
🇬🇧EN
burble
🇬🇧EN
mumble
Please don't mumble.
🇬🇧EN
croon