Platform is a term with multiple meanings in different contexts:
1. In technology, a platform refers to a computing environment where software applications can run.
2. In business, a platform is a business model that creates value by facilitating exchanges between two or more interdependent groups.
3. In transportation, a platform is a raised level surface on which people or things can stand, such as a train platform.
4. In politics, a platform refers to the declared policy of a political party or candidate.