Is “Rigor” a Scrabble word?
Yes
RIGOR
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Rigor
/ɹɪɡɚ/
noun
1.Short for rigor mortis.
noun
1.Severity or strictness.
2.Harshness, as of climate.
3.A trembling or shivering response.