General terms:
* Podium - This is the most common synonym, and often used interchangeably with lectern.
* Rostrum - This term is often used for a raised platform, especially for speakers.
* Pulpit - This is specifically used for a raised platform in a church for preaching.
* Stand
* Platform
* Stage
More specific terms:
* Ambo - This is a specifically designed podium for reading aloud in a church.
* Reading desk
* Speaker's stand
* Presentation stand
The best word to use will depend on the specific situation and the style of language you are using.