Bad Boy MZ Magnum 54 in. Zero-Turn Mower, BMZ54KT740

54 may refer to:

• 54 (number)
• one of the years 54 BC, AD 54, 1954, 2054
• 54 (novel), a 2002 novel by Wu Ming
• Studio 54, a New York City nightclub from 1977 until 1981
• 54 (film), a 1998 American drama film about the club
• 54 (album), a 2010 album by Metropole Orkest
• "Fifty Four", a song by Karma to Burn from the album Arch Stanton, 2014
• 54th Division (disambiguation)
• 54th Regiment of Foot (disambiguation)
• 54th Infantry (disambiguation)
• 54 Alexandra, a main-belt asteroid
• Tatra 54, an automobile

A boy is a young male human. The term is commonly used for a child or an adolescent. When a male human reaches adulthood, he is usually described as a man.

Magnum is a Latin word meaning "great".

Magnum may also refer to:

A mower is a person or machine that cuts (mows) grass or other plants that grow on the ground. Usually mowing is distinguished from reaping, which uses similar implements, but is the traditional term for harvesting grain crops, e.g. with reapers and combines.

A smaller mower used for lawns and sports grounds (playing fields) is called a lawn mower or grounds mower, which is often self-powered, or may also be small enough to be pushed by the operator. Grounds mowers have reel or rotary cutters. Larger mowers or mower-conditioners are mainly used to cut grass (or other crops) for hay or silage and often place the cut material into rows, which are referred to as windrows. Swathers (or windrowers) are also used to cut grass (and grain crops). Prior to the invention and adoption of mechanized mowers, (and today in places where use a mower is impractical or uneconomical), grass and grain crops were cut by hand using scythes or sickles.

To turn is to rotate, either continuously like a wheel turns on its axle, or in a finite motion changing an object's orientation. Turn may also refer to: