When the IOreDict is the lexicon, the IOreDictEntries are the lexicon's entries.
They consist of a name (OreDictionary name) and an explanation (all matching items).

It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import.
import crafttweaker.oredict.IOreDictEntry;

There are multiple ways of getting an IOreDictEntry Object: If you refer to an oreDict that does not yet exist, it will be created.

• Using the IOreDict class.
• Using the ore Bracket Handler.
• Using an IItemDefinition's ores getter.

You can use these getters to retrieve some information on the oredict:

name	Description	Return type
name name	Description Returns the oreDict's name	Return type string
name empty	Description Returns if the oreDict is empty	Return type bool
name firstItem	Description Returns the first of the oreDict's items	Return type IItemStack

You can use these methos on an IOreDictEntry Object:

ZenScript
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val oreDictEnt = <ore:ingotIron>;

//oreDictEnt.add(IItemStack... item_items);
oreDictEnt.add(<minecraft:grass>);
oreDictEnt.add(<minecraft:iron_ore>, <minecraft:dirt>);

//oreDictEnt.addItems(IItemStack[] items);
oreDictEnt.addItems([<minecraft:redstone>, <minecraft:gold_ore>]);

//oreDictEnt.addAll(IOreDictEntry otherEntry);
oreDictEnt.addAll(<ore:ingotGold>);



//oreDictEnt.remove(IItemStack... item_items);
oreDictEnt.remove(<minecraft:grass>);
oreDictEnt.remove(<minecraft:iron_ore>, <minecraft:dirt>);

//oreDictEnt.removeItems(IItemStack[] items);
oreDictEnt.removeItems([<minecraft:redstone>, <minecraft:gold_ore>]);

You can check if an IOreDictEntry contains an item using either the in or has keywords:

ZenScript
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val oreDictEnt = <ore:ingotIron>;

//While using in is possible
if(oreDictEnt in <minecraft:iron_ingot>){
    print("Iron is in the oreDict!");
}

//many prefer using has as it might make more sense grammar-wise
if(oreDictEnt has <minecraft:iron_ingot>){
    print("Iron still is in the oreDict!");
}

Mirroring an IOreDictEntry means that all items in the other oreDictEntry will be replaced by the items in the oreDictEntry the method was executed on:

ZenScript
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//make iron and copper equivalent
val iron = <ore:ingotIron>;
val copper = <ore:ingotCopper>;

//adds all entries from copper into iron so that the iron oreDictEntry contains both the iron and copper ingots
iron.addAll(copper);

//mirrors iron to copper, so all items in copper will be replaced by all the ones in iron.
//In this case that means by all iron and copper ingots, so copper and iron will have the same entries
copper.mirror(iron);

IOreDictEntry extends IIngredient. This means that all methods available to IIngredient are also available to IOreDictEntries. It also means that you can put IOreDictEntries into IIngredient Arrays (such as the ones in crafting recipe methods).

ZenScript
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val iron = <ore:ingotIron>;

for item in iron.items{
    recipe.remove(item);
}