In this paper, we provide some probability and moment inequalities (especially the Marcinkiewicz--Zygmund type inequality) for extended negatively dependent (END, in short) random variables. By using the Marcinkiewicz--Zygmund type inequality and the truncation method, we investigate the complete convergence for sums and weighted sums of arrays of rowwise END random variables. In addition, the complete moment convergence for END random variables is obtained. Our results generalize and improve the corresponding ones of Wang et al. [18] and Baek and Park [2].