Defined Minecraft Registries

minecraft:attribute
minecraft:block
minecraft:block_entity: block entity ID, not block id
minecraft:cat_variant
minecraft:dimension
minecraft:enchantment
minecraft:entity
minecraft:frog_variant
minecraft:game_event
minecraft:instrument
minecraft:item
minecraft:loot_table
minecraft:mob_effect (post-23w32a)
minecraft:motive: Painting ID (pre-22w16a)
minecraft:painting_variant: Painting ID (post-22w16a)
minecraft:position_source_type
minecraft:potion
minecraft:recipe
minecraft:structure
minecraft:villager_profession: Which profession the villager is
minecraft:villager_type: Which type of village the villager comes from

Custom Registries

custom:blockitemstates: block states based on the corresponding item ID
custom:blockstates: block states based on the corresponding block ID
custom:spawnitemtag: entity tags based on the corresponding spawn egg item iD