A tercet is a technical term in the discussion of verse forms. It means simply any group of three lines, considered as a unit or sub-unit of a poem. The word triplet may be used instead, but be aware that it has rather distinct meanings in various other technical areas.
- In musical notation, it means any group of three notes of the same time-value played in the time that would normally be taken by two of the same notes.
- In childbirth, etc, a triplet is one of three children born simultaneously, like a twin, but rarer.
- AWE leaves other technical senses to the teaching in the subjects in which they are used.