The kanji character 概, at its core, represents an *outline*, *general idea*, or *summary* of something. It often conveys the concept of *approximation* or *roughly*. It focuses on the broad picture rather than the specific details.

・On-yomi (音読み): ガイ (gai) ・Kun-yomi (訓読み): おおむね (ōmune) - meaning roughly, generally

⚫︎ 概要 Translation: Outline; summary; abstract ⚫︎ 概算 Translation: Rough estimate; approximation ⚫︎ 概論 Translation: General theory; overview

The kanji 概 is a phono-semantic compound (形声文字, *keisei moji*). It is formed by: ⚫︎ The semantic component (meaning component) is 朩 (also written as 木) - *ki* (tree, wood) that conveys a general shape, form, outline, or frame. ⚫︎ The phonetic component (sound component) is 既 (*ki*, already, entirely, accomplished) which contributes to the sound of the kanji. The combination suggests a framework or outline that has already been mostly established.