UNPROVABLE
\ʌnpɹˈuːvəbə͡l], \ʌnpɹˈuːvəbəl], \ʌ_n_p_ɹ_ˈuː_v_ə_b_əl]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C