The kanji 棟 represents the "ridge" or "roof beam" of a building. It refers to the highest horizontal beam that runs along the top of a roof, supporting the structure and often used to describe the building itself. This character can also extend to represent buildings or houses more generally.

・On-yomi (音読み): ・トウ ・Kun-yomi (訓読み): ・むね

⚫︎その家は立派な門と大きな棟を持っています。 Translation: That house has a magnificent gate and a large roof. ⚫︎棟梁（とうりょう） Translation: The ridgepole; the main support (of a building or an organization). ⚫︎新築の棟 Translation: A newly built house or building.

The kanji 棟 is a phono-semantic compound (形声文字). The left side is 木 (ki, meaning "tree" or "wood"), which is the semantic component, indicating that the character is related to wood or construction. The right side is 東 (tou, meaning "east"), which acts as the phonetic component, indicating the pronunciation and a sense of direction. The combination suggests a wooden structure, specifically a key structural element of a building.