Genitive with -s in Norwegian

In Brief

Norwegian can show ownership or a close relationship by adding -s directly to the owner: Annas bok (“Anna’s book”), Norges hovedstad (“Norway’s capital”). Unlike English, Norwegian normally has no apostrophe before the s. The following noun is usually indefinite in form: guttens hund, not guttens hunden.

Overview

The genitive is a form that links an owner, source, time, or other defining element to a noun. In everyday terms, it covers relationships such as “Anna’s book,” “the house’s roof,” and “today’s meeting.” Norwegian Bokmål commonly creates this link by adding -s to the first element and placing it before the noun it describes.

This is introduced at A2 because the main pattern is short and predictable. It does, however, rely on noun forms. A noun is a word for a person, place, thing, or idea; its definite form identifies a specific one, as in gutten (“the boy”), while gutt means “a boy” or simply “boy.” To say “the boy’s dog,” Norwegian first uses gutten, then adds -s: guttens hund.

English speakers already know a similar construction, but two English habits cause trouble. First, Norwegian does not normally write ’s. Second, the item possessed does not receive its own definite ending after an -s genitive. Alongside this compact construction, Norwegian frequently uses phrases with til, especially in conversation: boka til Anna (“Anna’s book”).

How It Works

The core pattern

The basic order is owner + -s + item or relationship. The owner is also called the possessor—the person or thing to which the second noun is connected.

Type of owner	Formation	Result	Meaning
Personal name	Anna + s + bok	Annas bok	Anna’s book
Definite noun	gutten + s + hund	guttens hund	the boy’s dog
Place name	Norge + s + hovedstad	Norges hovedstad	Norway’s capital
Institution	skolen + s + regler	skolens regler	the school’s rules

The -s belongs to the owner, not to the object:

• huset (“the house”) + s + tak (“roof”) → husets tak
• læreren (“the teacher”) + s + kontor (“office”) → lærerens kontor
• firmaet (“the company”) + s + adresse (“address”) → firmaets adresse

Choose the owner’s form first

A common noun normally has the meaning you need before -s is attached. If the intended owner is “the girl,” begin with jenta and form jentas sykkel. If it is “the children,” begin with the definite plural barna and form barnas rom.

Intended owner	Owner form	Genitive phrase
the boy	gutten	guttens hund
the girl	jenta	jentas sykkel
the house	huset	husets tak
the children	barna	barnas rom
the students	studentene	studentenes bøker

Personal names and place names generally take -s directly because they are already specific: Marias telefon, Oslos parker, Europas historie.

The following noun stays indefinite in form

An -s genitive already determines which thing is meant. Consequently, the following noun normally uses its indefinite form even when the English translation contains “the”:

• skolens bibliotek — “the school’s library,” not skolens biblioteket
• bilens motor — “the car’s engine,” not bilens motoren
• Norges hovedstad — “Norway’s capital,” not Norges hovedstaden

“Indefinite in form” does not mean vague in meaning. In husets tak, the roof is identifiable precisely because it is the roof of that house.

If an adjective comes between the genitive and the noun, the adjective normally takes its definite or weak form (usually ending in -e), while the noun itself remains indefinite:

• Annas nye bok — Anna’s new book
• husets høye tak — the house’s high roof
• byens gamle kirke — the city’s old church

There is normally no separate den/det/de in this pattern: Peters nye bil, not Peters den nye bilen.

No apostrophe—except after certain final letters

Before an ordinary -s, write no apostrophe:

• Eva → Evas jobb
• Norge → Norges kyst
• legen → legens råd

When the written owner already ends in -s, -x, or -z, Norwegian normally marks the genitive with an apostrophe alone rather than adding another s:

• Lars’ bil — Lars’s car
• Max’ jakke — Max’s jacket
• SAS’ nettside — SAS’s website

This apostrophe is a special spelling marker after those final letters. It is not the English ’s pattern and should not spread to names such as Anna or Erik.

More than literal possession

The construction often expresses a relationship rather than ownership. Countries do not “own” their capitals in the everyday sense, and a day cannot literally own an event.

Relationship	Example	Meaning
Whole and part	husets tak	the roof of the house
Place	byens sentrum	the city centre
Institution	universitetets nettside	the university’s website
Time	dagens nyheter	today’s news
Author or source	Ibsens skuespill	Ibsen’s plays
Measurement	to ukers ferie	two weeks’ holiday

Time and measurement phrases can use an -s form such as dagens, årets, en times, or to ukers: en times pause (“a one-hour break”), årets vinner (“this year’s winner”). Learn these as useful extensions of the same linking pattern.

Examples in Context

Norwegian	English	Note
Annas bok ligger på bordet.	Anna’s book is on the table.	A personal name takes -s directly.
Norges hovedstad er Oslo.	Norway’s capital is Oslo.	A place name as the defining element.
Guttens hund heter Balder.	The boy’s dog is called Balder.	gutten + s; hund stays indefinite.
Husets tak må repareres.	The roof of the house needs to be repaired.	A whole–part relationship.
Jentas sykkel er rød.	The girl’s bicycle is red.	jenta + s.
Barnas rom er ovenpå.	The children’s room is upstairs.	Definite plural barna + s.
Jeg har glemt lærerens navn.	I have forgotten the teacher’s name.	A specific teacher is meant.
Skolens nye bibliotek åpner mandag.	The school’s new library opens on Monday.	The adjective has -e; bibliotek has no definite suffix.
Byens beste kafé ligger her.	The city’s best café is here.	Superlative adjective after a genitive.
Dagens møte begynner klokka ni.	Today’s meeting starts at nine.	A time relationship.
Vi planlegger to ukers ferie.	We are planning a two-week holiday.	A plural measure phrase in the genitive.
Dette er Lars’ kontor.	This is Lars’s office.	Apostrophe alone because Lars ends in s.
Museets nettside er lett å bruke.	The museum’s website is easy to use.	Institution + associated resource.
Jeg liker Ibsens skuespill.	I like Ibsen’s plays.	The relationship is author to work.

Common Mistakes

Adding an English apostrophe

• Wrong: Anna’s bok
• Right: Annas bok
• Why: Norwegian adds -s directly. An apostrophe is used only in special cases such as Lars’ bok, where the written owner already ends in s, x, or z.

Making the possessed noun definite twice

• Wrong: guttens hunden
• Right: guttens hund
• Why: The genitive already identifies the dog. The noun after it therefore remains indefinite in form.

Starting from the wrong owner form

• Wrong: gutts hund when you mean “the boy’s dog”
• Right: guttens hund
• Why: Form “the boy” first—gutten—and then add -s. Gutts would not normally express the intended specific owner.

Using a strong adjective after the genitive

• Wrong: Annas ny bok
• Right: Annas nye bok
• Why: An adjective in this determined noun phrase normally uses its definite/weak form in -e, although bok itself has no definite ending.

Putting the -s on the item owned

• Wrong: Anna boks
• Right: Annas bok
• Why: The marker goes on the owner, Anna, not on the thing owned, bok.

Copying the English order into a til phrase

• Wrong: til Anna boka
• Right: boka til Anna
• Why: In the alternative construction, the item comes first and is normally definite: boka til Anna.

Usage Notes

The -s genitive is normal and productive in both Bokmål and Nynorsk, but it is especially compact and common with names, institutions, places, time expressions, headings, and written information: regjeringens forslag, Oslo kommunes nettsider, årets resultat. It works well when the relationship is short and easy to understand.

Norwegian also has the til construction: boka til Anna, taket på huset, or navnet på læreren, depending on the relationship. Boka til Anna is often natural in everyday speech and puts the item first. Notice the contrast in noun form:

-s construction	Alternative	English
Annas bok	boka til Anna	Anna’s book
guttens hund	hunden til gutten	the boy’s dog
lærerens navn	navnet på læreren	the teacher’s name
husets tak	taket på huset	the roof of the house

The best preposition is not always til. For parts and labels, Norwegian often prefers på: døra på bilen, slutten på filmen. This is a question of idiomatic wording, not merely replacing every -s with one fixed formula.

You will also hear constructions such as Anna sin bok and Per sitt hus, often called the sin-genitive. They are widespread in speech and are grammatically established, though their frequency and stylistic effect vary by region and context. For a reliable A2 foundation, learn to understand them, but use Annas bok and boka til Anna as your clearest neutral patterns.

Beyond the Basics / Advanced Use

You do not need to produce all of these patterns at A2, but they explain forms you will meet in news, formal writing, and longer noun phrases.

The genitive -s can attach to the end of a multiword name or phrase, because it marks the whole owner rather than only the nearest noun: Oslo kommunes nettsider (“the City of Oslo’s web pages”), kongen av Norges tale (“the king of Norway’s speech”). This is sometimes called a group genitive—the marker stands at the end of the complete group. Long versions can become difficult to read, so rewriting with a preposition is often clearer.

With coordinated names, Kari og Olas leilighet naturally presents one apartment connected to Kari and Ola together. If each person has a separate item, the sentence usually needs more context or a rewrite to avoid ambiguity. Compact grammar is useful only while the relationship remains clear.

Some expressions ending in -s look like genitives but have become fixed adverbs or set phrases, and compounds may contain a linking s that is not a productive ownership marker. For example, the s inside a compound is part of word formation, while the s in skolens regler links two separate words. Spelling helps: genitive phrases remain separate words; genuine compounds are normally written as one word in Norwegian.

In formal prose, several genitives can produce dense chains. Instead of stacking relationships, vary the structure:

• Dense: selskapets styres beslutning
• Clearer: beslutningen til selskapets styre or beslutningen fra selskapets styre, depending on the intended meaning

The choice between -s, til, på, av, and a compound is therefore partly about meaning and partly about style. The beginner rule remains unchanged: add -s to a clear owner and leave the following noun indefinite in form.

Practice Tips

1. Build phrases in two steps. Start with the owner in the intended form—jenta, huset, barna—then add -s and an indefinite noun: jentas sykkel, husets tak, barnas rom.
2. Transform each phrase both ways. Pair Annas bok with boka til Anna and guttens hund with hunden til gutten. Say aloud which noun changes form.
3. Proofread for two visual clues. Circle apostrophes that do not follow s, x, or z, and check every noun after a genitive. This quickly catches Anna’s bok and husets taket.

Related Concepts

• Prerequisite: Noun Gender (Three Genders) — helps you recognise Norwegian noun forms and the definite endings used before genitive -s.