One Tree Hill | One Tree Hill (TV series) | Köppen climate classification | tree | Christmas tree | British undergraduate degree classification | Herbert Beerbohm Tree | British Board of Film Classification | Porcupine Tree | The Joshua Tree | The Hanging Tree | Quebracho tree | Joshua Tree National Park | Under the Yum Yum Tree | Points classification in the Vuelta a España | Mountains classification in the Giro d'Italia | Happy Tree Friends | Biological classification | Tree of Life | Tree of Knowledge | tree line | Tree | Race (classification of human beings) | Oak Tree | Dewey Decimal Classification | Bordeaux Wine Official Classification of 1855 | tree of life | Tea Tree Plaza Interchange | Stellar classification | Rockin' Around the Christmas Tree |
Some dichotomic searches only have results at the leaves of the tree, such as the Huffman tree used in Huffman compression, or the implicit classification tree used in Twenty Questions.