U+6C17 "気" CJK Unified Ideograph-# Unicode Character
U+6C17 "気" CJK Unified Ideograph-# is a key character in the East Asian writing systems, functioning as a simplified and also Japanese variant of the character that in traditional Chinese is written as 氣 and in Korean as 기 (gi). It fundamentally represents the concept of "spirit," "energy," "air," or "vital force," most famously associated with the philosophical and medical term "qi" (or "ki" in Japanese). This ideograph is composed of a radical meaning "steam" or "vapor" and a phonetic component, and it is used in a wide range of vocabulary from everyday words like "weather" (天気, tenki) and "atmosphere" (空気, kūki) to concepts of temperament (気持ち, kimochi) and attention (気をつける, ki o tsukeru). Its cultural significance is profound, reflecting a core principle in East Asian thought regarding the flow of life energy through all living things.