[ seyn-yoh, sen-yoh; Italian se-nyaw ]
/ ˈseɪn yoʊ, ˈsɛn yoʊ; Italian ˈsɛ nyɔ /

noun, plural se·gni [seyn-yee, sen-yee; Italian se-nyee] /ˈseɪn yi, ˈsɛn yi; Italian ˈsɛ nyi/. Music.

a sign.
a sign or mark at the beginning or end of a section to be repeated.

Origin of segno

1905–10; < Italian < Latin signum a sign Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for segno

/ (ˈsɛnjəʊ, Italian ˈseɲɲo) /

noun plural -gni (-njiː, Italian -ɲɲi)

music a sign at the beginning or end of a section directed to be repeatedSymbol: , :S:

Word Origin for segno

Italian: a sign, from Latin signum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012