Meaning of the word straightedge in English

What does straightedge mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

straightedge

US /ˈstreɪtˌɛdʒ/
UK /ˈstreɪtˌɛdʒ/

Noun

a bar of wood or metal with at least one perfectly straight edge, used for drawing straight lines or checking the straightness of surfaces

Example:
He used a straightedge to draw a perfect line across the paper.
The carpenter checked the flatness of the wood with a straightedge.