highlighter

noun

A pen with bright, transparent ink used to mark important parts of a text.

Example sentence

“She went through her notes with a yellow highlighter before the exam.”

Also names a cosmetic product that adds shine to the face, so context decides which one is meant.

Related words

calculatorA machine, usually electronic, built to carry out mathematical calculations.rulerA person who governs a country or holds power over others.compassAn instrument with a magnetized needle or electronic sensor that shows which way north is.eraserA small tool, usually made of rubber, used to rub out marks made with a pencil or pen.protractorA flat, usually half-circle instrument used to measure and draw angles.pencilA writing tool with a thin graphite core, usually encased in wood and sharpened to a point.