To magnify means to make something appear larger than it actually is. When you look at a tiny ant through a magnifying glass, the lens bends light in a way that makes the ant look much bigger. Microscopes magnify cells and bacteria so scientists can study details invisible to the naked eye. Telescopes magnify distant stars and planets, bringing faraway objects close enough to see more clearly.

The word also means to make something seem more important or serious than it really is. When someone magnifies a small problem, they treat a minor setback like a major disaster. If you forget your homework once and start thinking, “I'm terrible at school and will never succeed,” you're magnifying that single mistake into something much bigger than it deserves.

In both meanings, magnify is about enlargement. With a microscope, you enlarge the image. When you magnify problems, you enlarge their importance in your mind. Scientists use magnification to discover new things, but magnifying worries can make them feel harder to solve.