ruler

/ˈɹuːlə(ɹ)/noun

A flat strip of wood, plastic, or metal with marked units, used for measuring and for drawing straight lines.

Example sentences

“Use a ruler to draw a straight line under the title.”
“My ruler shows both inches and centimeters.”
“The student measured the leaf with a plastic ruler.”

A standard school supply, often listed with pencils and erasers. The same word also means a king, queen, or other person who governs.

Related words

highlighterA pen with bright, transparent ink used to mark important parts of a text.eraserA small tool, usually made of rubber, used to rub out marks made with a pencil or pen.calculatorA machine, usually electronic, built to carry out mathematical calculations.pencilA writing tool with a thin graphite core, usually encased in wood and sharpened to a point.compassAn instrument with a magnetized needle or electronic sensor that shows which way north is.stationeryPaper, envelopes, pens, and other supplies used for writing and office work.