tranche/tɹɑ̃ʃ/EtymologyUnadapted borrowing from French tranche, form of trancher (“to cut, to slice”), from Old French trenchier (“cut, make a cut”), possibly from Vulgar Latin *trinicāre (“cut in three parts”). Doublet of traunch and trench.tranche means A slice, section or portion. Lexicurio rates it Distinctive — a strength score of 69 out of 100.nounA slice, section or portion.“Servants, carrying huge baskets suspended before them in which were huge tranches of bread, speedily distributed the contents; and they were followed by others bearing huge cans of milk, hot and cold.”A distinct subdivision of a single policyholder's benefits, typically relating to separate premium increments.A pension scheme's or scheme member's benefits relating to distinct accrual periods with different rules.One of a set of classes or risk maturities that compose a multiple-class security, such as a CMO or REMIC; a class of bonds. Collateralized mortgage obligations are structured with several tranches of bonds that have various maturities.verbTo divide into tranches.