"index" - key terms from Wikipedia

alchemy index
big mac index
body mass index
citation index
clustered index
color rendering index
consumer price index
cook partisan voting index
corruption perceptions index
democracy index
exposure index
failed states index
forward index
gini index
global peace index
glycemic index
hang seng composite index	series
hang seng index
happy planet index
heat index
herfindahl index
human development index
index
index	and middle fingers
index	arm
index	card
index	finger
index	fund
index	funds
index	librorum prohibitorum
index	of economic freedom
index	of refraction
index	register
index	series
index	value
inverted index
laspeyres index
load index
market index
negative refractive index
price index
refractive index
relative strength index
set index	article
stock index
stock market index
therapeutic index
viscosity index
volcanic explosivity index
worldwide press freedom index