Catalog vs Directory

When to use each in English, with meaning, register, and examples.

Catalog

Top 2,000 (common)B1

Directory

Top 2,000 (common)C1noun
 CatalogDirectory
Pronunciation🇬🇧 //ˈkæt.əl.ɒɡ//🇺🇸 //ˈkæt.əl.ɒg//🇬🇧 /["/dəˈrektəri//daɪˈrektəri/"]/🇺🇸 /["/dəˈrektəri//daɪˈrektəri/"]/
MeaningA list of items, usually in a book or online.A list or collection of information about things, like names, addresses, or files.
ExampleThe library has a new catalog of available books.The directory on the computer contains all the files related to the project.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB1C1
Part of speechnoun
Collocationsonline catalog, product catalog, library catalog, catalog entry, catalog itembusiness, telephone, trade, check, consult, compile, in a/​the directory, directory of, business, telephone, trade, check, consult, compile, in a/​the directory, directory of
Antonymsdisarray, chaos, randomnessfile, document
Common mistakesConfusing with 'catalogue' which is the British spelling., Using 'catalog' as a verb incorrectly, instead of the noun form., Mistaking it for 'inventory' which can imply a detailed list of stock.Mixing it up with 'directory' vs 'directly'., Using 'direct' instead of 'directory' when referring to a list., Confusing the spelling with 'directrey'.
Usage notesUsed when referring to organized lists of items, products, or works. Avoid in very casual conversations.Used in contexts like business, computers, and phone listings. It is appropriate when talking about organization systems but may sound overly formal in casual conversations.

Frequently asked questions: Catalog vs Directory

What's the difference between Catalog and Directory?

Catalog: A list of items, usually in a book or online. Directory: A list or collection of information about things, like names, addresses, or files.

Which is more advanced: Catalog and Directory?

Directory is the highest level, at C1, on the CEFR scale.

Are Catalog and Directory the same CEFR level?

Catalog: B1, Directory: C1 on the CEFR scale.

Can you show an example of each?

Catalog: The library has a new catalog of available books. Directory: The directory on the computer contains all the files related to the project.

Can I use Catalog and Directory interchangeably?

Not always. Catalog and Directory are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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