Quintile or Percentile
What is Quintile / Percentile
X%-Quintile or X-percentile means X% data is less that that line.
i.e. I got 94th percentile score (170) in GRE Quant, it means 94% people got less than 170.
The Median is the 50th percentile; quartiles underlie the Interquartile Range (IQR).