SOFA
\sˈə͡ʊfə], \sˈəʊfə], \s_ˈəʊ_f_ə]\
Sort: Oldest first
By DataStellar Co., Ltd
By Daniel Lyons
By William Hand Browne, Samuel Stehman Haldeman
By James Champlin Fernald
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C