falsetto

[ fawl-set-oh ]
/ fɔlˈsɛt oʊ /

noun, plural fal·set·tos.

an unnaturally or artificially high-pitched voice or register, especially in a man.
a person, especially a man, who sings with such a voice.

adjective

of, noting, or having the quality and compass of such a voice.

adverb

in a falsetto.

Origin of falsetto

1765–75; < Italian, equivalent to fals(o) (< Latin falsus false) + -etto -et
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for falsetto

falsetto

/ (fɔːlˈsɛtəʊ) /

noun plural -tos

a form of vocal production used by male singers to extend their range upwards beyond its natural compass by limiting the vibration of the vocal cords

Word Origin for falsetto

C18: from Italian, from falso false
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