Dictionary
Data Tags - Data tags are tags that show what specific type it is. For an example, a data tag could be {ench:[{id:16,lvl:10000}]} this data tag specifies that the item that has this data tag has a sharpness level of 10,000.
Data Values - Data Values shows what damage or value it is. If I add 15 in a data value section to a diamond sword, the diamond sword have 15 damage, or has been used 10 times. If I add 15 in the data value section to a block of wool, then the data value would be 15, or red wool.
Entity - Anything that is not a block. These things include mobs, players, thrown potions, minecarts, primed tnt, falling sand, thrown enderpearls, thrown items, fishing poles, item frames, and xp orbs.
Griefer - A Minecraft player who gets his fun from destroying the work of others.
FallingSand - An entity that can be any block that has the entity ID of FallingSand.
PrimedTNT - The entity that TNT is called when it is lit.
Seecret Friday Update - A set of updates in Minecraft Alpha which were not announced, but added sneaking, redstone, etc.
Source Block - A block that emits a full signal.
Powered Block - A block that only has the power to power anything adjacent to it.
Data Values - Data Values shows what damage or value it is. If I add 15 in a data value section to a diamond sword, the diamond sword have 15 damage, or has been used 10 times. If I add 15 in the data value section to a block of wool, then the data value would be 15, or red wool.
Entity - Anything that is not a block. These things include mobs, players, thrown potions, minecarts, primed tnt, falling sand, thrown enderpearls, thrown items, fishing poles, item frames, and xp orbs.
Griefer - A Minecraft player who gets his fun from destroying the work of others.
FallingSand - An entity that can be any block that has the entity ID of FallingSand.
PrimedTNT - The entity that TNT is called when it is lit.
Seecret Friday Update - A set of updates in Minecraft Alpha which were not announced, but added sneaking, redstone, etc.
Source Block - A block that emits a full signal.
Powered Block - A block that only has the power to power anything adjacent to it.