: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the last decade, a tranche of treatments for the disease has become available, making the disease that was once a devastating diagnosis a more manageable condition. Ciara McCarthy 15, Fort Worth Star-Telegram, 15 June 2026 One of the sources with knowledge of the arrangement was also quoted as saying a first tranche of $3 billion had already been made available. Azhar Sukri, CNBC, 13 June 2026 Together, these two tranches can be considered the legacy debt from the Glazers’ takeover. Chris Weatherspoon, New York Times, 13 June 2026 Simultaneously, Warren Buffett’s Berkshire Hathaway has agreed to a private placement, injecting $10 billion by purchasing equal $5 billion tranches of Class A and Class C stocks. Arthur Zaczkiewicz, Footwear News, 12 June 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 19 Jun. 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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