A computer operating system or software ecosystem that is capable of running across different hardware architectures or operating platforms.

(computing) a model of cloud computing often abbreviated as PaaS; platform as a service

a platform in computing used for running software applications

The specific hardware environment, such as a computer architecture or device type, on which software is run or can be run

an online platform or network-based service; internet platform

(computing) describing software or hardware that can run on multiple different operating systems or environments

(computing) multi-platform; referring to software or systems that can run on more than one operating system or hardware architecture

an oil or gas drilling platform used to drill through the seabed; offshore drilling rig