Platform
/ˈplætfɔːrm/
Definition 1 of 4
Pro Tip 1/3Physical Elevation
Refers to a literal, raised surface you can stand on, not just any flat space. 
The audience could see the band better from the elevated platform.
Pro Tip 2/3Visibility for Events
Used when someone is made more visible to an audience, often for performances or speeches. 
The award ceremony took place on a large platform.
Pro Tip 3/3Figurative Usage
Sometimes used metaphorically to indicate giving someone the opportunity to be heard. 
Social media gave him a platform to share his ideas.