An empire ship is a very big boat that is owned and used by a group of countries called the British Empire. The British Empire is a big group of countries that used to belong to Great Britain a long, long time ago.
The empire ships are used to move things like food, clothes, toys, and other things from one country to another country that is part of the British Empire. The ships are very special because they are very big, very strong, and can carry a lot of things.
When the empire ships are sailing on the ocean, they have to be very careful not to bump into other objects such as icebergs, rocks or other dangerous things that might be underwater. The people who operate the ships are very skilled and trained to make sure the ship is always sailing in the right direction and is safe.
Overall, an empire ship is a big and important boat that helps many countries in the British Empire to stay connected and exchange things with one another.