A Christmas tree is a special kind of tree that people decorate during a holiday called Christmas. This holiday is celebrated every year on the 25th of December, and it's a time when people like to share love and kindness with each other.
The Christmas tree usually looks like a normal tree but it is decorated with lots of colorful and shiny things like lights, ornaments, and sometimes even candy. People also like to put a star or an angel at the top of the tree.
The tradition of having a Christmas tree started a long time ago in Germany, but now it's very popular all around the world. People love to gather around the tree with their family and friends, sing songs, and exchange presents.
So, in simple words, a Christmas tree is a beautiful and sparkly tree that people decorate during a special holiday called Christmas. It helps to make people happy and brings them together.