This file is a part of Terraria or contains parts of Terraria and is copyrighted by its developers. It is used in a way that qualifies as fair use under US copyright law. The Breaker Blade is the largest sword in the game, beating the Blade of Grass. It has an...
barricade. 1  a defensive barrier hastily constructed, as in a street, to stop an enemy. 2  any barrier that obstructs passage. 3  to obstruct or block with a barricade: barricading the streets to prevent an attack. 4  to shut in and defend with or as if with a barricade: The rebels had barricaded themselves in the old city.
To segregate means to keep apart in some way. It can be as simple as segregating one category of items from another, but as you point out, it can also be used to refer to a system used to keep people apart or out of the mainstream in some way, as in racial segregation.