Dictionary

cross–index

verb cross–in·dex \ˈkrs-ˈin-ˌdeks\

Definition of CROSS-INDEX

transitive verb
1
:  to index (an item) under a second or under more than one heading
2
:  to supply (as a book) with a cross-referenced index
cross–index noun
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First Known Use of CROSS-INDEX

1892

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