Main Entry: ter·cet

Pronunciation: \ˈtər-sət\

Function: noun

Etymology: Italian terzetto, from diminutive of terzo third, from Latin tertius — more at third

Date: circa 1598

: a unit or group of three lines of verse: a : one of the 3-line stanzas in terza rima b : one of the two groups of three lines forming the sestet in an Italian sonnet