Okay kiddo, an Inn of Court is a special place where lawyers go to learn and practice law in England. It's like a clubhouse just for lawyers!
There are four Inns of Court in London, named Gray's Inn, Lincoln's Inn, Inner Temple, and Middle Temple. Each Inn has their own buildings, libraries, and dining halls.
Lawyers go to these Inns to study and take classes to become better lawyers. They also go there to meet other lawyers, judges and law students, and even to eat together.
Inns of Court are very important in England because they help to train and educate lawyers to uphold justice and fair laws. So it's like a secret club where lawyers go to learn and practice being fair and just!