General Synonyms:
* Disclose
* Uncover
* Show
* Expose
* Display
* Demonstrate
* Make known
* Bring to light
* Publish
* Declare
More Specific Synonyms:
* For secrets or hidden information: Unmask, divulge, betray, let out, spill the beans
* For a dramatic or surprising revelation: Unveil, announce, proclaim
* For gradual or subtle revelation: Hint, suggest, imply, intimate
* For a visual unveiling: Unwrap, open, expose
The best synonym for "reveal" will depend on the specific context of your sentence.