explanation
[C/U] Both
pl: explanations
This word carries a sense of bridging a gap in understanding. It is often associated with a logical sequence of events or a justification for an action. In professional or academic settings, it implies a structured delivery of facts to resolve confusion. Depending on the tone, it can shift from a helpful clarification to a defensive excuse. When someone is asked for an explanation after a mistake, the word takes on a heavier, more corrective connotation, moving away from simple instruction toward accountability.
Countable when referring to a specific instance of clarifying something, such as a single reason given for being late. Uncountable when referring to the general act or process of making something understandable.