Learner's definition of PLATFORM
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
the official beliefs and goals of a political party or candidate
the Republican/Democratic platform
The party adopted a new platform.
She was elected on a platform of peace. [=people elected her because she promised to work for peace]
something that allows someone to tell a large number of people about an idea, product, etc.
a shoe with a very thick sole
— usually plural
— called also
a program or set of programs that controls the way a computer works and runs other programs