The kanji 株 primarily represents the concept of "stump" or "stock" (as in a share of a company). It can refer to the base of a tree, or, more broadly, a "share" or "stock" in a business. This character encapsulates the idea of something that originates or forms the foundation for something else, whether a physical tree or a financial entity.

・On-yomi (音読み): カ（ka） ・Kun-yomi (訓読み): かぶ（kabu）

⚫︎ 株式会社 (kabushiki gaisha) Translation: Stock company; corporation. ⚫︎ 株式 (kabushiki) Translation: Stocks; shares. ⚫︎ 株主 (kabunushi) Translation: Shareholder; stockholder.

The kanji 株 is a phono-semantic compound (形声文字, keisei moji). The left side is the radical 木 (ki), meaning "tree" or "wood". The right side is 朱 (shu), which conveys the sound (phonetic component) and originally meant "vermilion" or "red". The combination, therefore, initially evoked the image of a tree stump with a reddish color. Over time, the character expanded to encompass the idea of a tree's root or base, and by extension, a base or foundation for something else, which is why it came to represent "stock" or "share".