The kanji 覆 means "to cover," "to hide," "to overturn," or "to cap." It implies the action of placing something over another, either physically or metaphorically, to conceal, protect, or reverse its state. It can describe a physical covering, like a lid, or a figurative covering, such as hiding the truth.

・On-yomi (音読み): フク (fuku) ・Kun-yomi (訓読み): おお（う） (ō（u）)

⚫︎ 覆面調査 Translation: Undercover investigation ⚫︎ 覆す Translation: To overturn; to reverse; to overrule ⚫︎ 転覆 Translation: Overturn; capsizing; overthrow

The kanji 覆 is a phono-semantic compound (形声文字). The radical is 覀 (originally 西, meaning "west" or "cover") on the top, and 复(fuku) as the phonetic component, which provides the sound and hints at the meaning. The character’s structure suggests the idea of covering or concealing something from view or changing its state. The top element 覀, acting as a cover, encapsulates the action of the phonetic component, reinforcing the sense of "to cover" or "to conceal."