There are a variety of synonyms for the term "low-budget western." One popular term is "B-Western." This term refers to low-budget westerns produced in the early to mid-20th century. Another common term is "oater," which is a slang term used to describe a western movie or TV show. "Horse opera" is another term used to describe low-budget westerns. It refers to the emphasis on horseback riding and the use of horses in these types of films. Other synonyms for low-budget westerns include "sagebrush series" and "frontier films." No matter what term is used, low-budget westerns remain a popular genre that continues to captivate audiences around the world.