The kanji 椎 primarily represents a type of tree, specifically a Japanese tree often referred to as a "chinquapin" or "castanopsis". It can also refer to the act of beating or striking.

・On-yomi (音読み): ツイ (tsui) ・Kun-yomi (訓読み): しい (shii)

⚫︎椎茸 Translation: Shiitake mushroom ⚫︎脊椎 Translation: Spine, spinal column ⚫︎椎骨 Translation: Vertebra

The kanji 椎 is a phono-semantic compound (形声文字). The left side is the radical 木 (ki, meaning "tree" or "wood"), indicating its connection to trees. The right side is 隹, which is the phonetic component, suggesting the sound "tsui" or a related sound. This combination visually represents a tree, specifically a type of tree. The phonetic part gives a hint of the pronunciation.