Explanation/ˌekspləˈneɪʃn/ Definition 1 of 3Pro Tip 1/3Clarity Essential Use 'explanation' when your purpose is to make a concept or situation completely clear to someone. Her explanation clarified the complex topic. Pro Tip 2/3Not Always Simple An explanation can be either simple or complex, depending on the subject matter. His explanation of quantum physics was not simple. Pro Tip 3/3Ask for Details If an 'explanation' is not clear, ask for further details or a simpler version. Could you give a simpler explanation?