DC electric refers to electric energy that flows in one direction, from positive to negative, within a circuit. There are various synonyms that can be used to describe it, including direct current, steady-state electric current, unidirectional electric current, and continuous electric current. These synonyms are essentially describing the same energy flow characteristics of DC electric, but may be used in different contexts and situations. In contrast, AC electric refers to the flow of electric energy that reverses direction periodically, and is often described using synonyms such as alternating current, sinusoidal current, and cyclical current. Understanding the nuances between these synonyms can be important in differentiating between different types of electric energy and their applications.