A cubic equation is a type of polynomial equation that involves a variable raised to the power of three. Synonyms for cubic equation include cubic polynomial, third-degree polynomial, and degree-three polynomial. These terms all refer to the same mathematical concept and can be used interchangeably. Other related terms that may be used in conjunction with cubic equations include roots, solutions, and coefficients. It's important to note that while cubic equations may seem daunting, there are a variety of methods and techniques that can be used to solve them. These include factoring, substitution, and the use of the cubic formula.