Final answer:
Dictionaries are found in the 400s range of the Dewey Decimal System, generally between 403 and 413.
Step-by-step explanation:
Dictionaries in libraries using the Dewey Decimal System are generally located in the 400s range, specifically between 403 and 413. When you want to find a non-fiction book such as a dictionary, you would use the library catalog to search for the title. Each book in the catalog will have a Dewey Decimal call number next to it, which corresponds to a specific subject matter. Therefore, to locate a dictionary in the library, you would look for call numbers within the 403 to 413 range.