A Christmas tree is a decorated evergreen coniferous tree that is traditionally used to celebrate the winter holiday of Christmas. It is a symbol of the season and is often placed in a prominent place in a home or office. The tree is decorated with lights, ornaments, and other decorations to create a festive atmosphere. It can also be decorated with gifts and other seasonal items, such as candy canes or tinsel. The tree is often used as a centerpiece during Christmas celebrations, and it is often lit up during Christmas Eve.