SINCE 1828
cross-index
verb
cross-in·dex
| \ ˈkrȯs-ˈin-ˌdeks
\
\
cross-indexed;
cross-indexing;
cross-indexes
Definition of cross-index
1
: to index (an item) under a second or under more than one heading
2
: to supply with a cross-referenced index
cross-index a book
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