How to spell TERRIANS correctly?

If you meant to write "terrains", a possible correction for the misspelling "terrians" could be "terrains". Terrains refer to a specific type of land or ground, such as mountains, forests or deserts. Other possible suggestions could be "terrains", "terrene" or "terrariums", depending on the intended meaning.

• terrains The highlands stretching across the country offered an endless number of terrains to explore.
• Terran The Terran planet, Earth, is located in the Milky Way galaxy.
• terrine The terrine was beautiful and smelled wonderful.

Intertubing

• antedating
• entertain
• entertainer
• entertaining
• inditing
• inner-tubing
• intertwine
• interurban
• intuiting
• undertaking