The most amount of damage that a sword enchanted with Sharpness V can do is 11 in Java Edition and 15.25 in Bedrock Edition, without critical hits. Sword.
An item can be enchanted by using an enchanting table and placing the item in the input slots and 1–3 Lapis Lazuli in its dedicated slot. Upon placing the item.
Enchantments can be broken down into a few major groups based on what you are enchanting. Some are only available for armor while some are restricted to tools.