OBLIVIOUSNESS
\əblˈɪvɪəsnəs], \əblˈɪvɪəsnəs], \ə_b_l_ˈɪ_v_ɪ__ə_s_n_ə_s]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C