Entry 1 sense Webster, 1913 Nabk /(năbk)/ · IPA /ˈnæb(ə)k/ 01 n. The edible berries of the Zizyphys Lotus, a tree of Northern Africa, and Southwestern Europe. 1. The edible berries of the Zizyphys Lotus, a tree of Northern Africa, and Southwestern Europe.(Bot.)