The kanji 宙 represents "space," "sky," or "the heavens." It implies an area beyond the earth, a place that is vast, open, and often associated with the cosmos or the area above. It can also refer to emptiness or a void.

・On-yomi (音読み): チュウ (chuu) ・Kun-yomi (訓読み): None, but it's often used in compound words.

⚫︎ 宇宙 (uchuu) Translation: universe; space ⚫︎ 宙返り (chuugaeri) Translation: somersault; flip (in the air) ⚫︎ 空中 (kuuchuu) Translation: in the air; aerial

The kanji 宙 is a 形声文字 (keisei moji), which means it's a character that combines a semantic component (meaning part) and a phonetic component (sound part). The character is composed of the radical 宀 (うかんむり – ukanmuri), which means "roof" or "house" (though here it suggests "covering") and 田 (ta), which means "field" or "rice paddy". The 田 component provides the phonetic element and the 宀 adds the meaning element, which suggests the scope beyond a fixed area. The character originally might have represented the "sky covering the field".