slab vs tranche

slab

verb
  • To make something into a slab. 

noun
  • A poured-concrete foundation for a building. 

  • A car that has been modified with equipment such as loudspeakers, lights, special paint, hydraulics, and other accessories. 

  • A large, flat piece of solid material; a solid object that is large and flat. 

  • A very large wave. 

  • The slack part of a sail. 

  • A paving stone; a flagstone. 

  • A large, luxury pre-1980 General Motors vehicle, particularly a Buick, Oldsmobile, or Cadillac. 

  • The amount by which a cache can grow or shrink, used in memory allocation. 

  • An outside piece taken from a log or timber when sawing it into boards, planks, etc. 

  • A sequence of 12 adjacent bits, serving as a byte in some computers. 

  • A carton containing 24 cans (chiefly of beer). 

  • Part of a tectonic plate that is being, or has been, subducted. 

tranche

verb
  • To divide into tranches. 

noun
  • A distinct subdivision of a single policyholder's benefits, typically relating to separate premium increments. 

  • 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. 

  • A pension scheme's or scheme member's benefits relating to distinct accrual periods with different rules. 

  • A slice, section or portion. 

How often have the words slab and tranche occurred in a corpus of books? (source: Google Ngram Viewer )