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had indexed

  • past perfect
    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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A Google search on Thursday revealed it had indexed nearly 300,000 Grok conversations.

From BBC ● Aug. 21, 2025

Schenkel had indexed all twelve thousand pages of Kepler’s surviving work.

From The New Yorker ● Nov. 19, 2018

As of September, the company had indexed a total of 3.3 billion Web pages, but AlltheWeb is right behind with 3.2 billion, and Inktomi covers a good 3 billion.

From Time Magazine Archive

Its first editor was John Douglass Cook, who had indexed the early volumes of the Quarterly for Murray and had gained his journalistic experience with the Times and the Morning Chronicle.

From Early Reviews of English Poets by John Louis Haney