Four wheeler is a term used to describe a vehicle that has four wheels. It is commonly used to refer to all-terrain vehicles (ATVs) and four-wheel drives (4WDs). However, several synonyms can replace the word four wheeler in different contexts. Some of these synonyms include a quad bike, a four-wheel bike, or a quadricycle. Other commonly used terms include off-road vehicles, SUVs, and buggies. In the automotive industry, the term all-wheel-drive (AWD) is also interchanged with four-wheel drive. In conclusion, the use of different synonyms for the term four wheeler depends mostly on the type of vehicle or context of use.