General:
* Platform: This is a very common synonym, often used interchangeably with "podium."
* Stage: This is more appropriate for a larger, more elaborate platform used for performances or presentations.
* Rostrum: This is more formal and typically refers to a raised platform used for public speaking.
* Lectern: This specifically refers to a stand with a slanted top used to hold speeches or notes.
Specific uses:
* Dais: Used for a raised platform at a ceremony or other formal event.
* Plinth: A base or support for a statue or other object.
* Base: A general term for a supporting structure.
The best synonym for "podium" depends on the specific context and the intended meaning.