Definition

A type of stone that is smooth and used with oil to sharpen tools like chisels and knives.

Example

He used an oilstone to sharpen his woodworking tools.

Conversation

I just got a new set of chisels for woodworking!

That's awesome! Have you started using them yet?

Not yet, but I need to get an oilstone to sharpen them first.

Good idea! A nice oilstone will really help them stay sharp.

Synonyms & Antonyms

Root Explanation

Oilstone → The word is formed from "oil" (from Old English "æle", meaning a fatty liquid) and "stone" (from Old English "stan", meaning a solid mineral matter). An oilstone is a stone used with oil for sharpening tools or blades.

Memory Tip

Think of a 'fatty liquid' ('oil') used with a 'solid mineral' ('stone') to sharpen tools — that's what an oilstone is.

Visually Confused Words