Tinea corporis is a fungal skin infection that affects the body's smooth and hairless skin surfaces. There are several synonyms for tinea corporis that are commonly used in medical literature. These include ringworm, dermatophytosis, tinea circinata, and mycosis corporis. Ringworm is the most common synonym and is used due to the unique appearance of the rash, which resembles a red, itchy ring. Dermatophytosis is a medical term used to describe skin infections caused by fungus. Tinea circinata is another term commonly used by physicians to describe fungal infections on the body. Mycosis corporis is a complex term that describes fungal infections of the skin.