展開

1. Origins, structure, and basic meaning

• Structure: Written 展開 and read てんかい, it is the process by which a story or argument unfolds and develops into new stages.
• Basic usage: It appears in an unexpected turn of plot and in a presenter building an argument through examples.

2. Common pitfalls and similar expressions

• Development rather than final result
  • The word focuses on sequence and direction as events or reasoning proceed.