noun, plat·form often attributive \ˈplat-ˌfrm\

: a flat surface that is raised higher than the floor or ground and that people stand on when performing or speaking

: a flat area next to railroad tracks where people wait for a train or subway

: a usually raised structure that has a flat surface where people or machines do work

Full Definition of PLATFORM

:  plan, design
:  a declaration of the principles on which a group of persons stands; especially :  a declaration of principles and policies adopted by a political party or a candidate
a (1) :  a usually raised horizontal flat surface; especially :  a raised flooring (2) :  a device or structure incorporating or providing a platform; especially :  such a structure on legs used for offshore drilling (as for oil)
b :  a place or opportunity for public discussion
a :  a usually thick layer (as of cork) between the inner sole and outer sole of a shoe
b :  a shoe having such a sole
a :  a vehicle (as a satellite or aircraft) used for a particular purpose or to carry a usually specified kind of equipment
b :  operating system; also :  the computer architecture and equipment using a particular operating system

Examples of PLATFORM

  1. He stepped up onto the platform and looked out into the audience.
  2. She stepped off the train onto the platform.
  3. Our train is boarding on platform 6.
  4. The party adopted a new platform.
  5. The company plans to use the show as a platform to launch the new soft drink.

Origin of PLATFORM

Middle French plate-forme diagram, map, literally, flat form
First Known Use: 1535

Related to PLATFORM

Other Building Terms

batten, cistern, hearth, lath, transom, wainscot
PLATFORM Defined for Kids


noun plat·form \ˈplat-ˌfrm\

Definition of PLATFORM for Kids

:  a level usually raised surface <We hurried to the train platform.> <Visitors can observe wildlife from a platform.>
:  a raised floor or stage for performers or speakers
:  a statement of the beliefs and rules of conduct for which a group stands <The candidates discussed their party's platform.>
:  an arrangement of computer components that uses a particular operating system
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