From the French, meaning a slice or a portion, this word has started appearing with greater frequency in financial and legal circles.
The loan should be repaid in four tranches, one every three months.
The former president has a tranche of law suits to answer to in his name.
The residents will receive their compensation in three tranches, the first at the beginning of the work and the others to be paid as the project is completed.
So while the word is clearly used in the jargon of bankers and economists, it is also starting to gain ground in the media and in everyday English.
A moment for learning with Jamie Duncan 