How to generalize proper nouns safely
Learn how to generalize names, companies, schools, regions, files, images, and URLs without removing necessary meaning.
When writing anonymously, the first things you may want to remove are proper nouns such as personal names, company names, school names, shop names, and region names.
This is the right starting point.
However, redacting proper nouns alone does not make the text safe. Around proper nouns, clues such as job titles, relationships, timing, places, project names, case names, photos, filenames, and URLs remain.
Even if you change "Company XX" to "a company," writing "a small medical startup in western Japan that announced fundraising last month" narrows the candidates considerably.
This article organizes how to do more than remove proper nouns: how to preserve the meaning readers need while reducing the precision that leads toward your identity or people involved.
Proper nouns become strong clues
Proper nouns are information that narrows the target all at once.
Personal names, company names, school names, hospital names, store names, event names, project names, station names, and facility names are strong information even on their own. In addition, when combined with dates or job titles, they can reveal not only the person but also people involved.
| Proper noun | What becomes visible | Anonymity caution |
|---|---|---|
| Personal name | Individual, people involved | Not only the person but also people around them may be identified |
| Company name / school name | Affiliation, everyday locations | The poster's position and people involved are narrowed down |
| Hospital / store / facility name | Place used, region | It connects to where someone goes and when |
| Event name | Participants, timing | It is compared with participant lists and photos |
| Project name | Work scope, people in charge | Insiders can tell where it came from |
| Station name / place name | Daily area, travel route | When it overlaps with other posts, it gets closer to home or workplace |
Proper nouns involve the people around you more than you may think.
In editing to protect anonymity, treat other people's names and affiliations the same way as your own name.
First decide what you are protecting
Before generalizing proper nouns, decide what you want to protect.
The granularity of information that can remain changes depending on whether you are protecting yourself, hiding a workplace, protecting a source, or protecting a victim or person seeking advice.
| Target to protect | Information needing particular care | Editing direction |
|---|---|---|
| The poster | Workplace, school, everyday locations, past posts | Make proper nouns that lead toward you broader |
| People involved | Personal names, job titles, relationships | Remove information that makes individuals stand out |
| Source | Affiliation, timing of contact, what was discussed | Use a granularity that increases the number of people who could know the information |
| Victim / person seeking advice | Region, school, family relationships | Reduce information that people nearby could infer from |
| Internal information in an organization | Project names, case names, meeting names, document names | Generalize expressions understood by insiders |
Even with the same act of "generalizing a school name," the necessary granularity differs depending on what you are protecting.
For a low-risk general personal story, "a university in Tokyo" may be enough. For high-risk whistleblowing or consultation, you may need to reduce it to "an educational institution."
Separate meaning from precision when replacing
The purpose of generalizing proper nouns is not to empty out the writing.
Keep the meaning readers need. Reduce the precision that leads toward you or people involved.
| Original expression | Replacement example | Meaning kept | Precision reduced |
|---|---|---|---|
| XX Clinic in Shibuya Ward | A medical institution in an urban area | An incident at a medical institution | Ward name, facility name |
| University A, Lab B | A research institution | A story from a research setting | University name, lab name |
| A store near Shinjuku Station | A store around a major station | A busy place | Station name, identifying the store |
| Manager Sato said during a regular hiring meeting | A manager said during a regular meeting | The meeting and position | Specificity of meeting name, personal name, job title |
| Project Falcon | An internal project | A work-related matter | Internal code name |
In these replacements, the information readers need to understand the situation remains.
At the same time, information that could lead toward the target through search or internal comparison is reduced.
Generalize neighboring information too
Removing only the proper noun is meaningless if neighboring information remains.
Even if you remove the company name, candidates narrow down if location, industry, headcount, job title, announcement date, and product name remain. Even if you remove a personal name, insiders may understand if job title, age, relationship, way of speaking, and timeline remain.
| Removed proper noun | Neighboring clues likely to remain | What to check |
|---|---|---|
| Company name | Industry, size, region, product name | Whether the combination is searchable |
| School name | Department, seminar, class name, event | Whether it narrows to a small group |
| Personal name | Job title, relationship, catchphrases, age | Whether people nearby would understand |
| Region name | Station, shop, dialect, weather, event | Whether everyday locations are visible |
| Event name | Date, venue, speakers | Whether participants are narrowed down |
Before publishing, reread the whole text after removing proper nouns.
Look not at "whether the names are gone," but at "whether clues remain that could restore the names."
Over-blurring breaks meaning
Removing every proper noun can look safe.
However, if you remove even the necessary meaning, readers cannot understand the situation. In consultation text, warnings, technical explanations, and reporting materials, the problem may no longer be communicated.
What matters is checking why that proper noun is needed for what you want to communicate.
| Purpose | Information that tends to be kept | Information to remove |
|---|---|---|
| General warning | Industry, type of problem | Company name, store name, date and time |
| Consultation | Situation causing trouble, support needed | School name, person in charge, job titles held by very few people |
| Technical explanation | Mechanism, failure pattern | Internal system name, real management screen |
| Preparing whistleblowing | Facts, types of evidence | Names of people involved, distribution destinations, exact time |
When you separate the parts that preserve meaning from the parts that reduce precision, it becomes easier to balance readability and anonymity.
Check files, images, and URLs too
Proper nouns do not appear only in the main text.
They can also remain in filenames, image backgrounds, screenshots, PDF metadata, Office document authors, and shared URLs.
| Place | Proper nouns that remain | What to check |
|---|---|---|
| Filename | Company name, project name, case name, date | Change to a public-facing name |
| Image | Signboards, name tags, school emblems, place names | Check the background too |
| PDF / Office document | Author, company name, template | Check metadata |
| URL | Organization name, user name, search terms | Remove unnecessary parameters |
| Audio | Names people are called, place names, facility names | Listen back to the audio content too |
Metadata checking methods are covered in detail in another article.
In this article, understand that proper nouns can remain outside the main text as well.
Pre-posting check procedure
Check text where proper nouns have been generalized in the following order.
- Look for personal names, company names, school names, facility names, and event names
- Check nearby job titles, regions, timing, and relationships
- Look for expressions that would bring up candidates if searched. If you actually use external search, do not enter unpublished text, sensitive proper nouns, or internal information as-is
- Think about who an insider would picture if they read it
- Check whether attached files, images, URLs, and audio contain the same information
If unclear items remain, it is important not to rush publication.
"Probably fine" is weak judgment for anonymity checks. For anything that remains unclear, proceed to one of these options: check it, generalize it further, do not publish it, or consult someone trusted.
Summary
To generalize proper nouns safely, removing only names is not enough.
Even if you remove personal names, company names, school names, facility names, and event names, the target can be narrowed down if job titles, timing, regions, relationships, filenames, images, and URLs remain.
In editing that protects anonymity, keep the meaning readers need while reducing the precision that leads toward you or people involved.
Even after generalizing proper nouns, check "who would come to mind if someone who knows the situation read this?"
Reviewing not only the main text but also images, files, URLs, and audio is an important pre-publication task.