Yowler is a word used to describe someone who yells or screams loudly and persistently. However, there are several synonyms for this word that can be used to convey a similar meaning, such as howler, screecher, shrieker, bawler, and caterwauler. All these words evoke a similar type of behavior and can be used interchangeably in various contexts. For instance, a howler monkey and a shrieking teenager both exhibit the behavior of yowling. Bawler and screecher could be used to describe a baby or a loud, shrill whistle. Overall, these synonyms broaden the word choices for writers and speakers and help to add variety to language use.