"yowls" in the noun sense
1. bellow, bellowing, holla, holler, hollering, hollo, holloa, roar, roaring, yowl
a very loud utterance (like the sound of an animal
"his bellow filled the hallway"
"yowls" in the verb sense
1. howl, wrawl, yammer, yowl
cry loudly, as of animals
"The coyotes were howling in the desert"
2. yowl, caterwaul
utter shrieks, as of cats
Source: WordNet® (An amazing lexical database of English)
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