NON-PROFICIENCY

\nˈɒnpɹəfˈɪʃənsi], \nˈɒnpɹəfˈɪʃənsi], \n_ˈɒ_n_p_ɹ_ə_f_ˈɪ_ʃ_ə_n_s_i]\

Definitions of NON-PROFICIENCY