| Subject | English | Basque |
| math. | classification and regression trees | sailkapena eta erregresio zuhaitz |
| environ. | coniferous tree | konifero |
| comp., MS | console tree | kontsola-zuhaitz (The left pane in Microsoft Management Console (MMC) that displays the items contained in the console. The items in the console tree and their hierarchical organization determine the capabilities of a console) |
| comp., MS | folder tree | karpeta-zuhaitz (A hierarchy of folders in the Exchange store very similar in structure to the standard file system. A single folder can contain child folders, which, in turn, can contain other child folders) |