Hun åpner skapet.

• Hun = the subject pronoun, she
• åpner = the verb, in the present tense, opens / is opening
• skapet = the object, the definite form of skap, meaning the cupboard / cabinet / closet depending on context

So the structure is:

subject + verb + object

which is very similar to English.

Because Norwegian usually puts the definite article at the end of the noun instead of using a separate word before it.

• et skap = a cupboard / a cabinet
• skapet = the cupboard / the cabinet

Here:

• base noun: skap
• definite ending: -et

So skapet literally means the cupboard as a single word.

No. In Norwegian, verbs do not change according to the subject the way they do in English.

In English:

• I open
• she opens

In Norwegian, the present tense stays the same:

• jeg åpner
• du åpner
• hun åpner
• vi åpner

So åpner is correct for all persons in the present tense.

The dictionary form is å åpne, which is the infinitive, meaning to open.

A few useful forms are:

• å åpne = to open
• åpner = open / opens
• åpnet = opened / has opened

So in Hun åpner skapet, the verb is in the present tense.

Skap is a neuter noun.

That is why its indefinite and definite singular forms are:

• et skap = a cupboard
• skapet = the cupboard

For many neuter nouns, the definite singular ending is -et.

So this sentence is also a good reminder that you should learn Norwegian nouns together with their article:

• et skap, not just skap

Yes, in this sentence it is.

Hun åpner skapet follows normal subject–verb–object order:

• Hun = subject
• åpner = verb
• skapet = object

That said, Norwegian has an important verb-second rule in main clauses. If you put something else first, the verb still comes second:

• Nå åpner hun skapet = Now she opens/is opening the cupboard

And in a yes/no question, the verb comes before the subject:

• Åpner hun skapet? = Is she opening the cupboard? / Does she open the cupboard?

It can mean either one, depending on context.

Norwegian present tense often covers both:

• she opens
• she is opening

So Hun åpner skapet could be understood as either:

• a simple present statement, or
• something happening right now

If you need to make the ongoing action especially clear, Norwegian can also use expressions like holder på å in some contexts, but the plain present tense is very common.

Skap is a general word for a storage piece of furniture or built-in storage space. Depending on context, English might translate it as:

• cupboard
• cabinet
• closet
• sometimes wardrobe

So the exact English word depends on what kind of skap is being talked about.

The letter å is pronounced roughly like the vowel in English law or more in many accents.

So:

• åpner starts with an aw- type sound

A rough English-friendly approximation of åpner is AWP-ner, though the real Norwegian pronunciation is smoother than that.

Also, the stress is on the first syllable:

• ÅP-ner
• SKA-pet

Because Norwegian usually builds definiteness into the noun itself.

English uses:

• the cupboard

Norwegian often uses:

• skapet

So in this sentence, the is already contained inside skapet through the ending -et. That is why you do not add another separate word before it.