Proposed by Chloe Garcia
English apostrophe rules have long blurred ownership and association.
This system restores clarity: apostrophes mark possession, omission, or clarity — nothing else.
Apostrophes show ownership, omission, or clarity — never mere purpose.
If the noun doesn’t own something, omit the apostrophe.
Add ’s to any singular noun — even one ending in s.
For plurals ending in s, add only ’.
For irregular plurals (no final s), add ’s.
| Ownership Type | Example | Meaning |
|---|---|---|
| Singular | the cat’s bowl | that specific cat’s bowl |
| Singular ending in s | the boss’s truck | truck belonging to one boss |
| Plural (ends with s) | the cats’ bowl | bowl shared by multiple cats |
| Plural of singular ending in s | the bosses’ truck | truck belonging to multiple bosses |
| Irregular plural | the children’s bikes | bikes belonging to those specific children |
| Shared possession | Jack and Jill’s car | one car belonging to both |
✅ Test: Can you point to the owner(s)? If yes, use the apostrophe.
When the noun only describes purpose, audience, or category, no apostrophe.
These are attributive uses, not possessive.
| Example | Meaning |
|---|---|
| teachers lounge | a lounge for teachers generally |
| dogs park | park for dogs |
| mens restroom / womens shoes / childrens playground | intended for men, women, children |
| writers festival / parents room | event or room for that group |
✅ Describes who it’s for, not who owns it.
This system aligns with existing English possessive pronouns and adjectival forms, which already omit the apostrophe.
| Example | Explanation |
|---|---|
| its handle | describes the handle belonging to the box — no apostrophe |
| his jacket | describes relationship, not marked with ’s |
| the book is hers | shows possession without apostrophe; her → hers acts adjectivally |
| the house is theirs | describes ownership through pronoun form, not punctuation |
These pronouns function adjectivally, describing association rather than literal ownership.
The Rational Apostrophe extends this same logic to nouns used attributively — such as mens restroom, teachers lounge, and childrens playground — maintaining full internal consistency between pronouns and nouns.
Apostrophes still mark omitted letters:
it’s = it is, don’t = do not, we’re = we are, you’ll = you will, he’s = he is
| Example | Expanded form | Note |
|---|---|---|
| it’s | it is / it has | not to be confused with its |
| he’s not allowed | he is not allowed | contrasts clearly with his (possessive pronoun) |
| don’t | do not | contraction of two words |
| we’re | we are | omitted letter indicated |
| you’ll | you will | shows contraction of you will |
Use an apostrophe only to prevent confusion when pluralising letters, symbols, or numbers.
| Example | Reason |
|---|---|
| Mind your p’s and q’s. | avoids “ps and qs” ambiguity |
| Dot your i’s and cross your t’s. | prevents “is” / “ts” confusion |
| Find all the &’s in the text. | clarifies symbol plural |
✅ Use sparingly — only where omission would cause genuine confusion.
Owner → apostrophe.
Audience → none.
Contraction → omission.
Ambiguity → clarity apostrophe.
| Traditional | Rational | Explanation |
|---|---|---|
| children’s hospital | childrens hospital | a hospital for all children, not owned by them |
| men’s restroom | mens restroom | restroom for men generally |
| teachers’ lounge | teachers lounge | lounge for teachers as a group |
| the children’s bikes | ✅ the children’s bikes | specific children’s bikes (ownership) |
| p’s and q’s | ✅ p’s and q’s | clarity exception |
- English historically conflated ownership with purpose.
- Pronouns like its, hers, his, and theirs already follow a rule identical to the Rational Apostrophe — no punctuation for relational description.
- The Rational Apostrophe simply extends that internal logic to all nouns, creating a single consistent system.
- It aligns with natural signage and modern compounds (menswear, childrens clothing, womens health).
- It’s logical, teachable, and visually consistent.
Apostrophes mark possession, omission, or genuine ambiguity — not association.
Attribution is unmarked.English evolves through use. Clarity begins with convention.
The Rational Apostrophe system is open for refinement and debate.
If you’d like to suggest examples, raise inconsistencies, or propose extensions:
- 💬 Join the Main Discussion to share ideas or ask questions.
- 🧵 Or start a New Discussion for specific examples or edge cases.
- 🐞 Open an Issue if you find an error or exception case.
- 🔀 Fork this repo to experiment with your own version.
Constructive contributions help keep the system consistent, clear, and practical.