tranche vs tun

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. 

tun

verb
  • To put into tuns, or casks. 

noun
  • The cryptobiotic state of a tardigrade, when its metabolism is temporarily suspended. 

  • A large cask; an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask. (See a diagram comparing cask sizes.) 

  • A traditional unit of liquid measure equal to 252 wine gallons or 2 pipes. 

  • A fermenting vat. 

  • Synonym of ton: any extremely or excessively large amount. 

  • A part of the ancient Maya Long Count Calendar system which corresponds to 18 winal cycles or 360 days. 

  • Synonym of long ton: a unit of mass equal to 2240 pounds, 20 hundredweights of 112 pounds avoirdupois each. 

  • Any shell belonging to Tonna and allied genera. 

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