triplet

noun

trip·​let ˈtri-plət 

plural triplets

1

: one of three offspring produced in the same pregnancy

2

a

: a combination, set, or group of three

b

: a group of three elementary particles (such as positive, negative, and neutral pions) with different charge states but otherwise similar properties

c

: an atom or molecule with an even number of electrons that have a net magnetic moment

d

: codon

3

: a group of three musical notes, tones, or beats performed in the time of two of the same value

4

: a unit of three lines of verse

Synonyms

• threesome
• triad
• trifecta
• trinity
• trio
• triple
• triumvirate

Examples of triplet in a Sentence

the theater piece is actually a triplet of comedy sketches, all of them having romantic love as their theme

Recent Examples on the Web

Zach’s triplet, Lindsay, officiated their ceremony as their family and friends watched on from abstract floral chairs as well as wire and wooden benches. —Elise Taylor, Vogue, 11 Oct. 2024

The couple has four children together (with three being triplets!). —Brendan Le, People.com, 10 Oct. 2024

In this photo from Sept. 11, 1957, first grade teacher Helen Lenon instructs students, including a set of triplets, in her classroom at Roosevelt Elementary School in Lyndhurst, New Jersey. —Vicki Cox, The Christian Science Monitor, 1 Oct. 2024

Zac Efron Cried When His Disney Channel Pilot Wasn't Picked Up Zac Efron was supposed to be part of a Disney Channel Original Series called Triple Play that focused on identical triplets. —Marina Watts, Peoplemag, 24 Sep. 2024

Word History

Etymology

triple entry 2

First Known Use

1656, in the meaning defined at sense 4

Kids Definition

triplet

noun

trip·​let ˈtrip-lət 

1

: a unit of three lines of verse

2

: a combination, set, or group of three

3

: one of three children or offspring born at one birth

4

: a group of three notes played in the time of two of the same value

Medical Definition

triplet

noun

trip·​let ˈtrip-lət 

1

a

: a combination, set, or group of three

b

: an atom or molecule with an even number of electrons that have a net magnetic moment

c

: codon

2

a

: one of three children or offspring born at one birth

b

triplets plural : a group of three offspring born at one birth

3

: a combination of three lenses