" cost-of-living index "

[Noun]  | "cost-of-liv*ing index" | \ ˈkȯst-əv-ˈli-viŋ- \

1: consumer price index

Origin: 1913 ;

[Noun]  | "consumer price index" 

1: an index measuring the change in the cost of typical wage-earner purchases of goods and services expressed as a percentage of the cost of these same goods and services in some base period —called also cost-of-living index

Origin: 1945 ;