The abstract noun of the verb ‘explain’ is ‘explanation’.
An abstract noun refers to a concept, idea, or quality that cannot be perceived with the five senses. In this case, ‘explanation’ encompasses the idea of making something clear or understandable through a detailed account. When we explain something, we aim to provide clarity, and the ‘explanation’ is the result of that act. Thus, while ‘explain’ refers to the action of clarifying information, ‘explanation’ represents the product or outcome of that action.