Geo- Definition & Meaning - Merriam-Webster

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geo-

combining form

1 : earth : ground : soil geophyte 2 : geographic : geography and geopolitics

Word History

Etymology

borrowed from Greek geō-, combining form of gê (Doric gâ) "earth, land, country," perhaps contracted from gaîa "earth," probably of pre-Greek substratal origin

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Gen Z geo- geoanticline See all Nearby Words

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“Geo-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geo-. Accessed 30 Dec. 2025.

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Kids Definition

geo

combining form : earth : ground : soil geology Etymology

Greek gē "earth, land"

More from Merriam-Webster on geo-

Nglish: Translation of geo- for Spanish Speakers

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