種明かし

1. Origins, structure, and basic meaning

• Structure: 種明かし combines 種, a secret or mechanism, with 明かし, the act of revealing. It is read たねあかし.
• Basic usage: Use it for revealing how a magic trick works or uncovering the hidden circumstances of a story.

2. Common pitfalls and similar expressions

• What is revealed
  • 種明かし focuses on revealing how a trick worked or what lay behind events.
  • ネタバレ also covers revealing important plot developments or an ending in advance.