DefinioSaved words

Words with the root geo

geo means “earth”, from Greekge.

16 examples of the root “geo”

  1. geographygraphywriting about the earth
  2. geologylogystudy of the earth
  3. geometrymetrymeasuring the earth
  4. geodeodeearth-like rocky formation
  5. geographicgraphicrelating to earth description
  6. geologicallogicalrelating to earth study
  7. geologistlogistone who studies the earth
  8. geophysicsphysicsphysics of the earth
  9. geopoliticspoliticspolitics shaped by earth geography
  10. geocentriccentriccentered on the earth
  11. geothermalthermalheat from within the earth
  12. geodesicdesicrelating to earth's curved surface
  13. geomorphologymorphologystudy of earth's landforms
  14. geostationarystationaryfixed relative to earth's position
  15. geosynchronoussynchronousorbiting in sync with earth

Also: geopolitical

How geo works

The root 'geo' typically functions as a combining form placed at the beginning of nouns and adjectives, converting them into terms describing earth-related sciences or properties. It remains stable in spelling with no assimilation variants, always appearing as 'geo' regardless of what follows it.

Watch out: The word 'geometry' may seem purely mathematical today, but it genuinely derives from 'geo' (earth) plus 'metry' (measuring), originally referring to land measurement; no common false friends closely mimic 'geo' without containing the root.

To see roots combine with other parts, try the word dissector and root builder, or test yourself in the vocabulary quiz.

Other Greek and Latin roots

Questions people ask

What does the root “geo” mean?

geo means “earth”. It comes from Greek (ge). The root 'geo' typically functions as a combining form placed at the beginning of nouns and adjectives, converting them into terms describing earth-related sciences or properties. It remains stable in spelling with no assimilation variants, always appearing as 'geo' regardless of what follows it.

What are some examples of words with the root “geo”?

geography, geology, geometry, geode, geographic, geological, geologist, geophysics. The full list of 16 examples, with what each one literally means, is above.

Which words look like they have the root “geo” but don’t?

The word 'geometry' may seem purely mathematical today, but it genuinely derives from 'geo' (earth) plus 'metry' (measuring), originally referring to land measurement; no common false friends closely mimic 'geo' without containing the root.

What is a root word?

A root is the core of a word that carries its main meaning. Many English roots come from Latin or Greek and cannot stand alone, like port (“carry”) in transport and portable.