A Lawnmowning lawn mower is a machine that uses one or more revolving blades to cut a grass surface to an even height. The blades may be powered either by hand, by pushing the mower forward to operate the mechanical blade(s), or it may have an electric motor or a small internal combustion engine to spin the blades. Some mowers also include other functions, such as mulching the cut grass or collecting their clippings in a bag.
There are several types of mowers, each suited to a particular scale and purpose. The smallest types are pushed by a human user and are suitable for small residential lawns and gardens. Electrical or gas engine-powered mowers are used for larger residential lawns. Riding mowers, which resemble small tractors, are larger than push mowers and are suitable for large lawns. The largest multi-gang mowers are mounted on tractors and are designed for large expanses of grass such as golf courses and municipal parks.