1: act of ascertaining or fixing the value or worth of
2: an appraisal of the value of something; "he set a high valuation on friendship"
3: standing or position on a scale
4: rank in a military organization

just spelt with an "E"

used in the north to describe something that is really really good. Alternatively "right right"

To be of high quality

when someone does something that deserves praise

The rating as to how attractive or hot a girl is. It generally goes in the order of:
Butt
Breasts
Face
Some people also rate the rest of their body.
So if someone tells you a girl is a 7-6-7, they mean her butt is a 7 out of 10, her breasts are a 6 out of 10, and her face is a 7 out of 10 also.

when u tell how hot someone is (in most cases on Instagram)

The state of being neither overrated nor underrated, but still noteworthy.