A lawn mower is a machine designed to cut grass evenly and maintain neat, healthy lawns. It uses rotating blades powered by a petrol engine, electric motor, or battery to trim grass to a desired height. Lawn mowers are ideal for homes, gardens, parks, sports fields, and commercial landscaping, offering efficient, fast, and uniform grass cutting. They are available in push, self-propelled, and ride-on models to suit different lawn sizes.