Path of Exile 2 Wiki
Path of Exile 2 builds are put together from many small parts, and the names rarely explain themselves. This part of the Onlyfarms wiki covers skill gems and the support gems socketed into them, curses and marks, ascendancy classes and crafting items, with a plain explanation of what each term does and where it matters in a build.
A few examples of what the entries explain: Spell Echo Support makes the spells it supports echo, at the cost of slower casting. Elemental Weakness is a curse that lowers enemy elemental resistances, while Freezing Mark makes the marked target easier to freeze. Deadeye is one of the ascendancy classes of the Ranger. On the item side, crafting currency such as the Orb of Alchemy turns a Normal or Magic item into a Rare one with random modifiers.
If you would rather have help with a character than read about one, Onlyfarms lists Path of Exile 2 services, and longer write-ups sit in the Path of Exile 2 guides. Words that are not specific to this game are explained in the general gaming wiki.