Muro ou parede
Could someone please explain the difference between these two words meaning wall
This belongs to the portuguese forum, I suggest you move it there. In any case, they both mean wall, although muro is linked to muralha(fortification / wall used for defense) and parede is just any wall like the wall in your room.
Muro is used to separate land while muralha is used for defence. Dispite the Berlin wall being called Muro de Berlim
I think, with the definition you gave, "muro" for the Berlin wall makes sense. For another example - this is a title of a Brazilian news article. "TRUMP QUER CONSTRUIR MURO COM DINHEIRO DE MIGRANTES"