teku' noun Sense 1 English. Bill, beak of fowl, birds. Example sentence: Subanen. Kanugdiin, ki teku' kau', iin ig danu maya; ki teku' maya, iin dema ig danu kau'. English. Long ago the rice bird had the hornbill's beak, and the hornbill had the rice bird's beak. Synonym. ektuk Sense 2 English. The point of a bladed weapon or knife.