What Does It Mean?
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From our dictionary:
sot•to vo•ce
(sot"O vO"chE; It.sôt"tô vô"che),
in a low, soft voice so as not to be overheard.
(sot"O vO"chE; It.sôt"tô vô"che),
in a low, soft voice so as not to be overheard.