percentile
//pərˈsɛn.taɪl//
Noun
percentileSingular
percentilesPlural
1
A value on a scale of one hundred that indicates the percentage of a distribution that is equal to or below it.
Her test score was in the 90th percentile, meaning she scored higher than 90% of the other students.
2
A ranking or position within a group based on statistical distribution, often used in standardized testing or growth charts.
My daughter is in the 90th percentile for height according to the growth chart.