trip·​let | \ ˈtri-plət How to pronounce triplet (audio) \

Definition of triplet

1 : one of three offspring produced in the same pregnancy
2a : 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 or tones performed in the time of two of the same value
4 : a unit of three lines of verse

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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

The March of Dimes also notes multiple pregnancies (of twins, triplets, or more) might also be a reason to abstain, as well as having had miscarriages in the past. Kaitlin Stanford, Woman's Day, "How to Safely Have Sex During Pregnancy," 18 Apr. 2019 About 1 in every 65 births in the U.K. are twins, triplets, or more, according to the NHS. Caroline Picard, Good Housekeeping, "Is Meghan Markle Having Twins? So Many Clues Are Pointing to a Big No," 15 Apr. 2019 Well, either five sets of triplets or three sets of quintuplets. Jessica Radloff, Glamour, "The Big Bang Theory Season 12, Episode 17 Recap: Are Sheldon and Amy Ready to Have Kids?," 8 Mar. 2019 Orsi also shot the couple’s 12-year-old triplet daughters, killing one of them. Chris Harris,, "'By the Grace of God' Young Girls Escape Murder-Suicide as Their Dad Kills Mom and Sister," 9 July 2018 Matt, a triplet, leaves behind his brother Tom, sister Eva and a younger sister, Katie. Scott Springer,, "Celebration of the life of Matt Stratman is Thursday at Lakota West," 2 July 2018 Last week, Canadian resident Randi Ingram spotted a mother moose and triplets marching through her backyard in Didsbury, Alberta. Elaina Zachos, National Geographic, "Rare Moose Triplets Spotted—Here's Why They're So Unusual," 5 June 2018 Vincent, a fraternal triplet, is set to go home early next week, Barton said. Janelle Walker,, "'One-in-a-million': Suburban woman had son, then twins — and now has given birth to triplets," 30 Mar. 2018 The feel is muscular, almost martial, while sneaking in a bit of bouncy brightness with the rhythmic triplet that leads the melody’s descending notes. Brian Mccollum, Detroit Free Press, "Detroit's global sports anthem: The White Stripes' 'Seven Nation Army'," 29 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triplet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of triplet

1656, in the meaning defined at sense 4

History and Etymology for triplet

triple entry 2

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Statistics for triplet

Last Updated

28 May 2019

Look-up Popularity

Time Traveler for triplet

The first known use of triplet was in 1656

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More Definitions for triplet



English Language Learners Definition of triplet

: one of three babies that are born at the same time to the same mother
: a combination, set, or group of three things


trip·​let | \ ˈtri-plət How to pronounce triplet (audio) \

Kids Definition of triplet

1 : a combination, set, or group of three
2 : one of three offspring born at one birth


trip·​let | \ ˈtrip-lət How to pronounce triplet (audio) \

Medical Definition of triplet

1a : 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
2a : 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

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More from Merriam-Webster on triplet

Thesaurus: All synonyms and antonyms for triplet

Spanish Central: Translation of triplet

Nglish: Translation of triplet for Spanish Speakers

Britannica English: Translation of triplet for Arabic Speakers

Comments on triplet

What made you want to look up triplet? Please tell us where you read or heard it (including the quote, if possible).


to move with exaggerated bouncy motions

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