Zyon is a modern spelling of Zion, the biblical hill of Jerusalem that came to stand for the holy city and the heavenly kingdom; the Hebrew Tsiyon is of uncertain origin and is often explained as "highest point" or "fortress". The Z spelling emphasizes the sound and matches the taste for Zayden, Zaire and Zymir. Zyon climbed from number 1724 in 2000 into the US top 1000 in 2021, peaked at number 862 in 2023 and ranks number 947 in 2025.