a horizontal surface or structure with a horizontal surface raised above the level of the surrounding area.

a raised flooring or other horizontal surface, such as, in a hall or meeting place, a stage for use by public speakers, performers, etc.

the raised area between or alongside the tracks of a railroad station, from which the cars of the train are entered.

the open entrance area, or the vestibule, at the end of a railroad passenger car.

a landing in a flight of stairs.

a public statement of the principles, objectives, and policy of a political party, esp. as put forth by the representatives of the party in a convention to nominate candidates for an election

The platform contained the usual platitudes.

a body of principles on which a person or group takes a stand in appealing to the public; program

The Fabians developed an all-embracing platform promising utopia.

a set of principles; plan.

a place for public discussion; forum.

a decklike construction on which the drill rig of an offshore oil or gas well is erected.

Building Trades . a relatively flat member or construction for distributing weight, as a wall plate, grillage, etc.

Military .

solid ground on which artillery pieces are mounted.

a metal stand or base attached to certain types of artillery pieces.

Nautical . flat 1 ( def. 42a ) .

a flat, elevated piece of ground.

Geology . a vast area of undisturbed sedimentary rocks that, together with a shield, constitutes a craton.

a thick insert of leather, cork, or other sturdy material between the uppers and the sole of a shoe, usually intended for stylish effect or to give added height.

platforms, platform shoes.

hardware platform.

software platform.

a scheme of religious principles or doctrines.

noun

belvedere , dais , floor , podium , pulpit , rostrum , scaffold , scaffolding , staging , terrace , manifesto , objectives , party line * , plank , policy , principle , program , soapbox , stump * , tenets , altar , base , boardwalk , chart , deck , estrade , forum , gangplank , lectern , ledge , lyceum , pallet , perron , ramp , skid , stage , stand , tribune