ILL-DEFINED
\ˈɪldɪfˈa͡ɪnd], \ˈɪldɪfˈaɪnd], \ˈɪ_l_d_ɪ_f_ˈaɪ_n_d]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C