The word "beller" means to emit a loud, deep sound, usually from an animal such as a bull or moose. There are several synonyms for this word, which can be used to add variety and interest to writing. Some common synonyms for "beller" include roar, bellow, holler, shout, and yell. Each of these words has a slightly different connotation, with "roar" suggesting a powerful and impressive noise, while "holler" conveys a sense of urgency or excitement. Other synonyms for "beller" might include bay, bray, cry, or wail, depending on the context and the specific animal making the noise. By using different synonyms for "beller," writers can create richer, more nuanced descriptions of animal sounds.