Definition, synonyms and related words
plural of catalog
"The library shelves were filled with dusty catalogs from every decade."
Third-person singular simple present indicative form of catalog
"The librarian catalogs every new book as it arrives at the library."
In plain English: To catalog something means to list its details so it can be found easily later.
"The librarian catalogs new books every morning so they can be found easily on the shelves."