RUTHLESS
\ɹˈuːθləs], \ɹˈuːθləs], \ɹ_ˈuː_θ_l_ə_s]\
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By Princeton University
By DataStellar Co., Ltd
By William Dodge Lewis, Edgar Arthur Singer
By Daniel Lyons
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