What does Gyatso mean in Tibetan? "Ocean or Sea"

Tensin Gyatso is a name the Dalai Lama is often Called which means "Ocean of Wisdom" 

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Gyatso means "ocean" or "sea" in Tibetan. 

Cultural Significance

Vastness and Wisdom: The image of an ocean represents depth, boundless knowledge, and the vast nature of enlightenment.
Lineage and Titles: The word is a traditional component in Tibetan names. It is famously part of the title and personal name of each Dalai Lama after the first (such as the current 14th Dalai Lama, Tenzin Gyatso), where it serves as the Tibetan translation of the Mongolian word dalai.
Monastic Tradition: It is a common personal name or title given to monks, lamas, and spiritual teachers. 

If you'd like, I can share:

• How the word is spelled and written in the traditional Tibetan script
• Other famous historical figures who carried the name Gyatso