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were indexing

  • past progressive
    of index.
    index
    noun
    (in a nonfiction book, monograph, etc.) a more or less detailed alphabetical listing of names, places, and topics along with the numbers of the pages on which they are mentioned or discussed, usually included in or constituting the back matter.

Example Sentences

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"Similarly, members observed that some firms were indexing their prices, either implicitly or directly, to past inflation."

From Reuters ● Jun. 20, 2023