Cool MateDirectory vs Index
When to use each in English, with meaning, register, and examples.
Directory
Index
| Directory | Index | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/dəˈrektəri//daɪˈrektəri/"]/🇺🇸 /["/dəˈrektəri//daɪˈrektəri/"]/ | 🇬🇧 /["/ˈɪndeks/","/ˈɪndɪsiːz/"]/🇺🇸 /["/ˈɪndeks/","/ˈɪndɪsiːz/"]/ |
| Meaning | A list or collection of information about things, like names, addresses, or files. | A list of items, usually showing where to find them. |
| Example | The directory on the computer contains all the files related to the project. | The book's index helps you find specific topics quickly. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | C1 | B2 |
| Part of speech | noun | noun |
| Collocations | business, telephone, trade, check, consult, compile, in a/the directory, directory of, business, telephone, trade, check, consult, compile, in a/the directory, directory of | complete, comprehensive, detailed, appear in, be in, consult, give something, list something, card, in a/the index, index to, good, reliable, sensitive, have, use (something as), compile, add something, gain something, increase, in an/the index, on an/the index, a drop in an index, a fall in an index, changes in an index, good, reliable, sensitive, have, use (something as), compile, add something, gain something, increase, in an/the index, on an/the index, a drop in an index, a fall in an index, changes in an index |
| Antonyms | file, document | disorder, chaos |
| Common mistakes | Mixing it up with 'directory' vs 'directly'., Using 'direct' instead of 'directory' when referring to a list., Confusing the spelling with 'directrey'. | Using 'index' as a verb incorrectly., Confusing 'index' with 'inventory'., Not using 'index' for multiple items. |
| Usage notes | 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. | Use 'index' when discussing organization or reference materials. Avoid in casual conversation where simpler words like 'list' would suffice. |
Frequently asked questions: Directory vs Index
What's the difference between Directory and Index?
Directory: A list or collection of information about things, like names, addresses, or files. Index: A list of items, usually showing where to find them.
Which is more advanced: Directory and Index?
Directory is the highest level, at C1, on the CEFR scale.
Are Directory and Index the same CEFR level?
Directory: C1, Index: B2 on the CEFR scale.
What part of speech are Directory and Index?
Directory: noun, Index: noun.
Can you show an example of each?
Directory: The directory on the computer contains all the files related to the project. Index: The book's index helps you find specific topics quickly.
Can I use Directory and Index interchangeably?
Not always. Directory and Index 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.