Definition of "geo" []

• A narrow inlet walled in by steep cliffs. (noun)
• An element in many compound words of Greek origin, meaning ‘the earth’ or ‘earth,’ or ‘land.’ (noun)

The Century Dictionary (Public Domain)

• "In Urdu, the national language of Pakistan, the word geo translates to live on in English."
• "Geothermal comes from the Greek word geo, meaning earth, and therme, meaning heat."
• "WebSafety also allows you to set up what they call a geo-zone."