Definition

A big, round piece of rock that is found on the ground or in the soil.

Example

The children climbed over the boulder in the park.

Conversation

Did you see that huge boulder by the trail yesterday?

Yeah, it looked massive! I wonder how it got there.

I bet it rolled down from the mountain during a storm.

That makes sense; it really stood out in the landscape.

Synonyms & Antonyms

Root Explanation

Boulder → The word 'boulder' originates from Middle English 'boulter' (meaning a large stone or rock), which is derived from the Old English 'baldor' (meaning a large stone). It refers to a large, rounded rock or stone, typically one that is too big to be moved easily.

Memory Tip

Think of a 'large stone' — that's what a boulder is, a big rock that stands out in nature.

Visually Confused Words