What does the word parity mean?

Usage examples for parity

  1. " But that's very dangerous doctrine," said I; " by parity of reasoning you would make the lust of the flesh divine." – Dreamers of the Ghetto by I. Zangwill
  2. To that M. Venizelos replied that there was no parity between the two instances. – The Inside Story Of The Peace Conference by Emile Joseph Dillon
  3. He wanted to hear Prime Suspect's sentence because, under the rules of parity sentencing, Mendax's own sentence would have to be similar to that of his fellow hackers. – Underground by Suelette Dreyfus