WILL-O'-THE-WISP
\wɪlˈə͡ʊðəwˈɪsp], \wɪlˈəʊðəwˈɪsp], \w_ɪ_l_ˈəʊ___ð_ə_w_ˈɪ_s_p]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C