In this post we are going to explain the difference between undercommon vs common 5e languages. You can read them individually from the below mentioned list.
Difference Between Undercommon vs Common Languages
From the below explanation you can easily understand and compare these two languages such as common vs undercommon languages.
Undercommon: This undercommon language was a trade language which is spoken by the majority of intelligent races native to underdark. However the undercommon who speaks are aboleth, choker, chuul, cloaker, delver, drider, drow, duergar, dwarf, githyanki, githzerai, grimlock, kobold, kuo-toa, orc, rakshasa, roper, svirfneblin, and mind flayer races. Actually, this undercommon has been written by using the Espruar alphabet. This language sounds elvish in origin.
Common: This common languages was a trade language of the Faerûn. However it is almost every sentient, civilized simply being spoken the smattering of it, and also most of them were fluent. Because most of them could not read or even they could not write the language too. However in a general way, the people of Faerûn were capable to converse by each other in this common dnd language.
If you want to check the comparision between undercommon vs deep speech you can simply click on the link we mentioned.