* Terrestrial: Relating to the Earth or its inhabitants.
* Terracotta: A type of clay used to make pottery, literally "baked earth".
* Terra firma: Solid ground, as opposed to water or air.
* Terrarium: A container for growing plants, simulating a miniature terrestrial environment.
* Terrain: The physical features of a region of land.
* Terrace: A raised platform or area of land, often used for landscaping.
* Terrestrialism: A political philosophy that advocates for a focus on the Earth's environment and resources.
* Terraforming: The process of modifying a planet or moon to make it habitable for humans.
These are just some examples, and there are many other words that use the prefix "terra" depending on the context.