tunggul noun English. The cross piece attached to a single pole leaning against a tree on which a logger stands to fell the tree. Example sentence: Subanen. Sa' ndi' tunggulan su gayu, ndi' mesu'at nega'ay, pu' metaas ig daliden. English. If you don't use a cross piece scaffold on this tree, you can't cut it down, because it has high buttress roots. c.f. englag; bangan; lales; tuduk