index - a numerical scale used to compare variables with one another or with some reference number. 1  margin of error, margin of safety, safety margin - the margin required in order to insure safety; in engineering the margin of safety is the strength of the material minus the anticipated stress.
Nutty Ways to Celebrate Squirrel Appreciation Day This Year. SQUIRRELS! Whether you love them or loathe them, National Squirrel Appreciation Day, January 21st, is a great time to take a few moments and learn about these nutty animals. If you count flying squirrels we have 10 tree species in North America.
It's Short Girl Appreciation day on the 9th of March. Short Girl Appreciation Day' is by our calculation on: March the 9th. The first time we detected Short Girl Appreciation Day was the 8th of March 2015 and the most recent detection of references to Short Girl Appreciation Day was 1 month ago. There were many celebrations relating to national holdiays written about on social media that our algorithms picked up, on the 9th of March.