Houseflies are pesky insects that are often found buzzing around our homes. They are known for their quick movements and ability to irritate humans with their incessant buzzing. Although "houseflies" is the most common term used to describe these insects, there are a few other synonyms that can also be used. Some of these synonyms include common flies, filth flies, and domestic flies. All of these terms describe the same type of insect, and they are often interchangeable. However, some people may prefer to use one term over the other depending on the context or the specific type of fly they are referring to.