Making loud, wailing, or mournful cries, especially as cats do when fighting or in distress.
From Middle English 'youlen,' possibly imitating the sound itself. The '-ing' suffix makes it a gerund or present participle.
Cats yowl to communicate complex emotions—not just pain or fear, but a whole vocabulary of social negotiation that humans rarely understand, yet we dismiss cat vocalizations as noise instead of a sophisticated language.
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