The kanji 省 primarily conveys the idea of "to save," "to economize," "to omit," or "to reflect/inspect." It implies a reduction in something, whether it be resources, actions, or details. It also carries the meaning of looking back and contemplating.

・On-yomi (音読み): セイ (sei) ・Kun-yomi (訓読み): はぶ.く (habu.ku) - to omit, to leave out; かえり.みる (kaeri.miru) - to reflect upon, to review

⚫︎ 省エネ Translation: Energy saving ⚫︎ 反省する Translation: To reflect (on one's actions); to introspect ⚫︎ 省略 Translation: Omission; abbreviation; to abbreviate

The kanji 省 is a phono-semantic compound (形声文字 - keisei moji). The semantic component is 目 (め - me), meaning "eye," which suggests observation or looking. The phonetic component is 少 (しょう - shou), which provides the sound and also has the meaning of "few" or "little," contributing to the sense of reducing or saving. Thus, the character originally depicted a person observing or surveying something with the intention of reducing or eliminating unnecessary elements. Over time, it developed to encompass the meanings of "to save," "to omit," and "to reflect."