Definition

A type of brick that can withstand very high temperatures, commonly used to line furnaces, fireplaces, and chimneys.

Example

The builder used firebrick to ensure the fireplace could handle the heat.

Conversation

I saw some really cool firebrick at the hardware store yesterday.

Oh really? What were you planning to use it for?

I thought it might be useful for my outdoor pizza oven.

That sounds awesome! Firebrick is perfect for withstanding the heat.

Synonyms & Antonyms

Root Explanation

Firebrick → It is formed from "fire" (from Old English "fyr", meaning flame or heat) and "brick" (from Old English "bricc", meaning a block of baked clay). The word "firebrick" refers to a type of brick that can withstand high temperatures, specifically used in fireplaces and kilns.

Memory Tip

Think of 'fire' as the heat source and 'brick' as the building material — firebrick is a brick designed to endure high heat.

Visually Confused Words