Definitions

1. verb

to utter a hoarse cry, especially of a bird, such as a curlew.

“The curlew warbled loudly in the evening.”

2. verb

to make a harsh, grating sound, as if from a bird.

“The rusty gate warbled as it creaked open.”

3. noun

a harsh, grating sound, as if from a bird, or a rusted gate.

“The warble of the gate echoed through the night.”