SNBT
Stringified NBTStringified NBTsStringified named binary tagStringified named binary tags
The stringified named binary tag is the text based, human readable version of NBT.
SNBT is used a lot in Commands to specify items attributes.
Give a diamond sword with the sharpness 5 enchantment.
/give @s minecraft:diamond_sword{Enchantments:[{id:"minecraft:sharpness",lvl:5s}]}Specifications in the curly brackets is SNBT.
