INVALIDATED
\ɪnvˈalɪdˌe͡ɪtɪd], \ɪnvˈalɪdˌeɪtɪd], \ɪ_n_v_ˈa_l_ɪ_d_ˌeɪ_t_ɪ_d]\
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Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C