A possessive noun is a form of a noun that shows ownership or another relationship between people, things, places, or ideas. It is usually formed by adding ‘s or an apostrophe after an existing plural s.
The architect’s drawings revealed a problem with the building’s foundation.
Architect’s identifies whose drawings they are. Building’s connects the foundation to the building.
Although possessives are often associated with ownership, they can also express relationships, time, and other connections.
How to Form Possessive Nouns
Most possessive nouns follow three patterns.
| Noun type | Rule | Example |
|---|---|---|
| Singular noun | Add ‘s | the technician’s report |
| Plural noun ending in s | Add an apostrophe after s | the cyclists’ route |
| Plural noun not ending in s | Add ‘s | the children’s drawings |
Singular Possessive Nouns
For most singular nouns, add ‘s.
The violinist’s instrument was damaged during transportation.
Violinist’s refers to one violinist.
The same rule generally applies to singular common nouns ending in s.
The witness’s account helped investigators establish the sequence of events.
The possessive form is witness’s, although the noun already ends in s.
Proper names such as James and Chris have additional style considerations, which we’ll address below.
Plural Possessive Nouns
For regular plural nouns ending in s, place the apostrophe after the final letter.
The volunteers’ supplies were stored in the community centre.
The supplies are associated with several volunteers, so the apostrophe follows the plural ending.
Compare:
| Form | Meaning |
|---|---|
| engineer | One engineer |
| engineers | More than one engineer |
| engineer’s | Possessive form of one engineer |
| engineers’ | Possessive form of several engineers |
Irregular plurals that do not end in s take ‘s.
The women’s contributions were recognized at the ceremony.
Women is already plural. Its possessive form is women’s.
The same rule applies to men’s, children’s, and people’s.
Possessive Forms of Names Ending in S
Names such as James, Chris, and Iris can take different possessive forms depending on the writing style being followed.
Many styles, including MLA, generally add ‘s to singular personal names ending in s.
Iris’s paintings were selected for the regional exhibition.
Other styles, including Associated Press style, generally use only an apostrophe in this situation.
Iris’ paintings were selected for the regional exhibition.
Both forms are accepted under different editorial conventions.
This is not simply a difference between American and British English. If you’re writing for a school, publication, or organization, follow its required style. Otherwise, choose an established convention and apply it consistently.
Possessives of Family Names
When a surname refers to several members of a family, it must first be made plural before becoming possessive.
Consider the surname Jones.
| Form | Meaning |
|---|---|
| Jones | One person named Jones |
| Jones’s | Possessive form of one person named Jones, under a style using ‘s |
| Joneses | Members of the Jones family |
| Joneses’ | Possessive form referring to the Jones family |
The Joneses’ driveway was blocked by a fallen branch.
The driveway belongs to or is associated with the family, not just one person named Jones.
For surnames that form their plurals with -s, the same principle applies.
The Carters’ garden was featured in a local magazine.
Carters’ is the possessive form of the plural family name Carters.
The key is to determine whether you mean one person or several family members before adding the possessive ending.
Possessives With Compound Nouns
Compound nouns may contain several words or hyphens. Their possessive ending normally comes after the complete compound.
The editor-in-chief’s decision surprised the publishing team.
Editor-in-chief’s is the possessive form of the singular compound noun editor-in-chief.
When the compound noun is plural, form the plural first and then add the possessive ending.
Compare:
My brother-in-law’s workshop is near the harbour.
My brothers-in-law’s shared workshop is near the harbour.
The first sentence refers to one brother-in-law.
The second refers to two or more brothers-in-law who share the workshop. Brothers-in-law is already plural, and ‘s marks the possessive relationship.
Possessives can also attach to longer expressions.
Someone else’s suitcase was mistakenly loaded onto the bus.
The correct form is someone else’s, not someone’s else.
Joint Possession vs. Separate Possession
When two people are mentioned together, the position of the possessive ending can show whether something is shared or belongs to them separately.
Joint Possession
If two people jointly own or share something, the possessive ending normally appears after the second name.
Leila and Tomas’s photography studio reopened after the renovations.
The sentence presents the studio as jointly associated with Leila and Tomas.
Only the second name takes the possessive ending.
Separate Possession
If each person possesses something separately, make both names possessive.
Leila’s and Tomas’s photography studios reopened on different dates.
The sentence now refers to separate studios associated with Leila and Tomas.
This distinction does not depend on the number of things involved.
Two people can jointly own several businesses, for example:
Leila and Tomas’s businesses operate in three different cities.
The possessive construction presents the businesses as jointly associated with both people. It does not tell us how their responsibilities or ownership shares are divided.
If those details matter, a more specific sentence will be clearer.
What Can Possessive Nouns Mean Besides Ownership?
A possessive noun can express a relationship without identifying an owner.
The journalist’s daughter discovered a box of unpublished letters.
Journalist’s expresses a family relationship. It does not mean the journalist owns the daughter.
Possessives can also associate events with people, organizations, or places.
The railway’s closure disrupted services across the region.
The railway does not own the closure. The possessive connects the event to the railway.
When a Possessive Has More Than One Meaning
Sometimes a possessive expression can have several interpretations.
Consider:
The gallery displayed Maya’s portrait.
Without more context, Maya’s portrait could refer to a portrait she owns, one she created, or one depicting her.
The possessive form does not identify the exact relationship.
If the distinction matters, a more specific expression is better.
| Expression | Meaning |
|---|---|
| Maya’s portrait | The relationship depends on context |
| a portrait of Maya | Maya is the person depicted |
| a portrait by Maya | Maya created the portrait |
| a portrait belonging to Maya | Maya owns the portrait |
Possessives are useful because they can express connections briefly. But when a reader might misunderstand the connection, more specific wording provides greater clarity.
Time and Duration
Possessive forms also appear in expressions involving time.
The contractors requested a week’s notice before the inspection.
The tenants received two weeks’ notice before the building closed.
Week’s is singular possessive, while weeks’ is plural possessive.
Other familiar expressions include an hour’s work, three hours’ work, and yesterday’s meeting.
These expressions concern time or duration rather than literal ownership.
When to Use a Possessive Noun or an Of-Phrase
English offers several ways to express connections between nouns. A possessive is not always the most natural choice.
Consider:
The company’s reputation suffered after the investigation.
The possessive is natural because it associates the reputation with the company.
Now compare:
The roof of the building was damaged during the storm.
This of construction is also natural, particularly when the building is being identified or described in a longer phrase.
In other cases, English commonly uses one noun to modify another.
The door handle was loose.
Door handle is more usual than the door’s handle when simply naming this part of a door.
There is no universal rule that possessives must be used with people and of phrases with objects. The choice depends on the expression, meaning, and sentence context.
Long possessive constructions can sometimes become difficult to follow.
Compare:
The building at the end of the lane’s windows were replaced.
The windows of the building at the end of the lane were replaced.
The second version is clearer because the relationship between windows and building is easier to follow.
A Friend of Nadia’s
Some expressions combine of with a possessive ending.
A friend of Nadia’s recommended the restaurant.
A friend of Nadia’s means one of Nadia’s friends.
Now compare:
A photograph of Nadia was displayed in the gallery.
A photograph of Nadia commonly means a photograph depicting her.
These are different constructions, and their meanings are not interchangeable.
Possessive Nouns and Related Forms
Possessive nouns are sometimes confused with ordinary plurals, possessive pronouns, and contractions.
Plural Nouns vs. Possessive Nouns
| Form | Meaning |
|---|---|
| teachers | More than one teacher |
| teacher’s | Possessive form of one teacher |
| teachers’ | Possessive form of several teachers |
An ordinary plural does not need an apostrophe merely because it refers to more than one person or thing.
Possessive Nouns vs. Possessive Pronouns
A possessive noun can appear before another noun:
Amelia’s painting was displayed near the entrance.
It can also stand without repeating the noun when the intended meaning is clear:
The painting near the entrance is Amelia’s.
The possessive pronoun hers can express the same relationship:
The painting near the entrance is hers.
Unlike possessive nouns, independent possessive pronouns such as mine, yours, hers, ours, and theirs do not take apostrophes.
Words such as my, your, her, its, our, and their are possessive determiners used before nouns.
Its vs. It’s
Its expresses possession or association.
The satellite adjusted its position before entering the next orbit.
It’s is a contraction of it is or it has.
It’s been difficult to restore the connection.
The possessive form its has no apostrophe.
Our apostrophe rules guide explains contractions and other apostrophe uses in greater detail.
Practice: Possessive Nouns
1. Singular or plural possession?
The technician reviewed the engineers report before approving the repairs.
The report was prepared by several engineers.
Correct:
The technician reviewed the engineers’ report before approving the repairs.
Engineers is plural and ends in s, so its possessive form takes an apostrophe after the final letter.
2. Form a plural compound possessive
The brothers-in-law shared business was expanding.
Correct:
The brothers-in-law’s shared business was expanding.
Brothers-in-law is a plural compound noun. Adding ‘s after the completed compound forms the possessive.
3. Joint or separate possession?
Nina and Oliver’s design agency won a regional award.
Does this sentence present the agency as shared or separately owned?
Answer: Shared.
The agency is presented as jointly associated with Nina and Oliver.
If they operated separate agencies, both names would take possessive endings, and the sentence would need to identify the agencies accordingly.
4. Remove ambiguity
The museum displayed Elena’s photograph.
Rewrite the sentence to show clearly that Elena took the photograph.
Correct:
The museum displayed a photograph taken by Elena.
This identifies Elena as the photographer rather than leaving the relationship open to interpretation.
5. Choose the more natural expression
Which sentence is more natural when referring to a handle fitted to a door?
A. The door’s handle was loose.
B. The door handle was loose.
Answer: B.
The door handle was loose.
Door handle is the usual expression for this object. The possessive form is understandable but generally unnecessary when simply naming this part of a door.
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