What is the word to this meaning give details?

There isn't one perfect word that captures the meaning of "give details" perfectly. However, depending on the context, you could use:

General:

* Elaborate

* Explain

* Describe

* Specify

* Illustrate

* Clarify

* Expand on

* Go into detail

* Provide more information

More specific:

* Enumerate (list items in detail)

* Articulate (express clearly and precisely)

* Demonstrate (show how something works or is done)

* Exemplify (give examples)

* Illustrate (use visuals to explain)

The best word to use will depend on the specific situation and the type of details you want to provide.