: a division or portion of a pool or whole
specifically : an issue of bonds derived from a pooling of like obligations (such as securitized mortgage debt) that is differentiated from other issues especially by maturity or rate of return

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Finance and Tranche

In French, tranche means “slice.” Cutting deeper into the word’s etymology, we find the Old French word trenchier, meaning “to cut,” which has its likely origin in a Latin word meaning “to cut in three,” from Latin trini meaning “three each.” Tranche emerged in the English language in the late 19th century to refer to a division or portion of a larger pool or whole, and later developed a finance-specific meaning referring to an offering for sale of typically a set of bonds “cut” from a larger group of bonds, the tranche being differentiated by such factors as maturity or rate of return.

Examples of tranche in a Sentence

Recent Examples on the Web
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Lutnick has faced growing bipartisan pressure to testify about his ties to Epstein after the Justice Department's release of a tranche of documents that suggested Lutnick maintained contact with Epstein years after claiming to have distanced himself from him. Maegan Vazquez The Washington Post, Arkansas Online, 5 Mar. 2026 That’s nearly thirteen years after Epstein initially expressed interest in joining the project, six years after he was found dead in a jail cell, and just one day after the latest tranche of investigation files were released by the Department of Justice. Theresa Gaffney, STAT, 5 Mar. 2026 That initial tranche of transcripts was followed on December 12 by another eighteen pages spanning January 29 through June 28, 1942. Literary Hub, 5 Mar. 2026 Most of the latest tranche of reserves spending came at the behest of a subcommittee controlled by Democratic Supervisors Terra Lawson-Remer and Monica Montgomery Steppe, according to county documents. Lucas Robinson, San Diego Union-Tribune, 4 Mar. 2026 See All Example Sentences for tranche

Word History

Etymology

French, literally, slice, from Old French, from trenchier, trancher to cut — more at trench

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of tranche was in 1893

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Cite this Entry

“Tranche.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tranche. Accessed 16 Mar. 2026.

Legal Definition

tranche

noun
: a division or portion of a pool or whole: as
a
: an issue of bonds derived from a pooling of like obligations that is differentiated from other issues especially by maturity or rate of return
b
: a bond series issued for sale in a foreign country
Etymology

French, literally, slice, from Old French, from trenchier, trancher to cut

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