retail price index
noun/ˌriːteɪl ˈpraɪs ɪndeks/
/ˌriːteɪl ˈpraɪs ɪndeks/
(also price index)
[singular] (abbreviation RPI)
- (in the UK) a list of the prices of some ordinary goods and services which shows how much these prices change each month see also consumer price index
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retail price index