The kanji 首 primarily represents the "neck" or "head." It's a fundamental part of the human body and, by extension, can also refer to related concepts.

・On-yomi (音読み): シュ (shu) ・Kun-yomi (訓読み): くび (kubi)

⚫︎ 首 (くび) が痛い。 Translation: My neck hurts. ⚫︎ 首 (シュ) 相 (shushou) Translation: Prime Minister ⚫︎ 首 (くび) にする Translation: To fire (someone), to lay off.

The kanji 首 is a pictograph. It depicts the head and neck. The top part of the character represents the head, and the bottom part symbolizes the neck. Over time, the form has evolved but still retains the visual representation of its core meaning.