howl

n. 1 long loud doleful cry of a dog etc. 2 prolonged wailing noise. 3 loud cry of pain, rage, derision, or laughter. v. 1 make a howl. 2 weep loudly. 3 utter with a howl.  howl down prevent (a speaker) from being heard by howls of derision. [imitative]

v. i. To utter a loud, protraced, mournful sound or cry, as dogs and wolves often do.