Formal:
* Relate: To tell or describe something in detail.
* Recount: To give a detailed account of something that happened.
* Describe: To give a detailed account of something.
* Chronicle: To record events in chronological order.
* Detail: To give a thorough description of something.
Informal:
* Tell: The most basic and common word.
* Explain: To make something clear or understandable.
* Share: To give information to others.
* Talk about: To discuss something.
* Speak of: To mention something.
Other options:
* Narrate: To tell a story, often in a formal or literary way.
* Report: To give a formal account of something.
* Disclose: To reveal something that was previously unknown.
* Articulate: To express something clearly and effectively.
The best word to use will depend on the context and the specific meaning you want to convey.