概要

1. Origins, structure, and basic meaning

• Structure: 概要 is read がいよう and means an overview summarizing the broad outline of something.
• Basic usage: It is used to introduce a plan briefly or grasp an article before reading the full text.

2. Common pitfalls and similar expressions

• Focus compared with 要旨
  • 概要 gives a broad view of the content as a whole, while 要旨(ようし) focuses on its central point or gist. Their uses can overlap when presenting content briefly.