OPEN-AND-SHUT
\ˈə͡ʊpənandʃˈʌt], \ˈəʊpənandʃˈʌt], \ˈəʊ_p_ə_n_a_n_d_ʃ_ˈʌ_t]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C