clarification
Word family
Synonym discussion
Sense: noun/1
All three words describe providing information to improve understanding, but they differ in purpose and register. 'Explanation' is the broadest and most neutral term — it can describe anything from a teacher describing a grammar rule to a scientist detailing a theory. 'Elaboration' adds extra layers of detail to something already understood, rather than clearing up confusion. 'Elucidation' is the most formal of the three and often appears in academic or literary writing, where a complex idea needs to be made clear. For example, a manager might provide an 'explanation' of a new policy, ask for 'elaboration' on a specific point in a report, and expect the legal team to offer 'elucidation' of a complicated regulation.