shard vs tranche

shard

verb
  • To divide (an MMORPG) into several shards, or to establish a shard of one. 

  • To break (something) into shards. 

  • To fall apart into shards, usually as the result of impact or explosion. 

noun
  • An instance of an MMORPG that is one of several independent and structurally identical virtual worlds, none of which has so many players as to exhaust a system's resources. 

  • A piece of crystal methamphetamine. 

  • A component of a sharded distributed database. 

  • The plant chard. 

  • A tough scale, sheath, or shell; especially an elytron of a beetle. 

  • A piece of broken glass or pottery, especially one found in an archaeological dig. 

  • A piece of material, especially rock and similar materials, reminding of a broken piece of glass or pottery. 

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 shard and tranche occurred in a corpus of books? (source: Google Ngram Viewer )