がいりゃく概略gairyaku
1.
A general overview that presents the main points of a topic while omitting detailed information.
2.
A concise representation that captures the essential aspects of an event or subject, often used to provide a summary without delving into specifics.
3.
The fundamental nature or outline of a matter that provides a simplified understanding of the subject at hand, possibly used to convey information succinctly.
Example:
彼に計画の概略を述べてもらおう。