keening
verb
Definitions
To make cold, to sharpen.
verb
Definitions
To utter a keen.
To utter with a loud wailing voice or wordless cry.
To mourn.
noun
Definitions
Intense mournful wailing after a death, often at a funeral or wake
(by extension) An unpleasant wailing sound.
adjective
Definitions
Sharp, shrill, especially of a sound.
Example: The keening sound of a dentist's drill sets my teeth on edge.