I. fȯlˈsed.(ˌ)ō, -e(ˌ)tō noun
( -s )
Etymology: Italian, from falso false, (from Latin falsus ) + -etto (diminutive suffix) — more at false
1. : an artificially high voice ; especially : an artificially produced singing voice that overlaps and extends above the range of the full voice especially of a tenor and is noticeably less rich, expressive, and powerful than the full voice
2. : a singer (as a male alto) who uses falsetto — contrasted with castrato
II. adjective
: relating to falsetto
III. adverb
: in falsetto
to sing falsetto