"rating" - key terms from Wikipedia

age rating
ao rating
approval rating
average rating
community rating
content rating
course rating
credit rating
credit rating	agencies
credit rating	agency
decile rating
elo rating
elo rating	system
energy rating
entertainment software rating	board
fide rating
game rating
given a rating
highest rating
household rating
instructor rating
instrument rating
machinability rating
motion picture rating	system
mpaa rating
nielsen rating
octane rating
passer rating
performance rating
pg rating
power rating
quarterback rating
r rating
rating
rating	agencies
rating	agency
rating	list
rating	point
rating	scale
rating	scales
rating	system
rating	systems
received a rating
ski trail rating
slope rating
speed rating
star rating
television rating	system
type rating
weight rating