rigor
1. [ noun ] something hard to endure
Synonyms: hardship grimness rigour severity rigorousness asperity
Examples:

"the asperity of northern winters"

Related terms: difficulty
2. [ noun ] excessive sternness
Synonyms: harshness inclemency hardness stiffness rigour severity
Examples:

"severity of character" "the harshness of his punishment was inhuman" "the rigors of boot camp"

Related terms: sternness
3. [ noun ] the quality of being logically valid
Synonyms: validity rigour cogency
Related terms: credibility
Similar spelling:   Rizor
  rigour
  rigger
  Rieger
  Rizer
  riser
  Riker
  ricer
  Risser
  Risher
  Rieser
  Ricker
  Richer