The skeleton description says that while it cannot speak it, it can understand the languages it knew in life. Can it not speak because of its undeath or could it learn to speak a language?
['https://rpg.stackexchange.com/questions/67863', 'https://rpg.stackexchange.com', 'https://rpg.stackexchange.com/users/21781/']
If it was physically capable of speaking, it would be able to speak the languages it knew in life. It still retains its knowledge of them, so *knowing* how to speak a language is not the problem. The problem is that a skeleton lacks lips, a tongue, vocal cords, a voicebox, and lungs. Speaking is simply impossible.

The Monster Manual entry on skeletons says:

> 
> They can't read, speak, emote, or communicate in any way except to nod, shake their heads, or point.
> 
> 
> 

From this, it seems clear that it is meant to be impossible for skeletons to communicate in **any** way other than the given nodding, shaking, and pointing.
<https://www.dandwiki.com/wiki/Skeleton_(5e_Race)> said

> 
> You've managed to control the energies that sustain you to allow you speak. You can speak, read and write Common, as well as the language of your creator. A Giant Skeleton may speak Giant, a God Touched may know Celestial, a Magic Fluke may randomly grant you a language and a Raised Minion may know their wizard master's draconic.
> 
> 
> 

so im guessing you can but i think it's for players thats race is skeleton