Definition

Relating to or existing below the surface of the ground.

Example

The subterraneous tunnels were used for secret transportation.

Conversation

Did you know that there are subterraneous rivers flowing beneath the city?

Really? I had no idea that was even possible!

Yeah, they help with the drainage system, but they’re hard to find.

That’s fascinating! I’d love to explore one someday.

Synonyms & Antonyms

Root Explanation

Subterraneous → It is formed from "sub-" (meaning under) and "terra" (meaning earth). The word describes something that is under the earth or ground.

Memory Tip

Think of something that is 'under' ('sub-') the 'earth' ('terra') — that's why subterraneous refers to things beneath the surface.

Visually Confused Words