Minnekortet er fullt.

Because minnekortet is the definite form of the noun: the memory card.

• et minnekort = a memory card
• minnekortet = the memory card

In Norwegian, definiteness is often shown by adding an ending to the noun instead of using a separate word like the.

Since minnekort is a neuter noun, the definite singular ending is -et:

• et kort → kortet
• et minnekort → minnekortet

It literally means memory card.

It is a compound noun:

• minne = memory
• kort = card

Norwegian often forms nouns by joining words together, just like English does with words such as toothbrush or bedroom.

Because minnekortet is a neuter singular noun, and adjectives used after er often agree with the noun.

The base adjective is:

• full = full

But with a neuter singular noun, it becomes:

• fullt

So:

• Boken er full. = The book is full. (common gender)
• Huset er fullt. = The house is full. (neuter)
• Minnekortet er fullt. = The memory card is full.

You know because its indefinite form uses et:

• et minnekort

In Norwegian, nouns are usually either:

• en words (common gender)
• et words (neuter)

Since it is et minnekort, the adjective also takes the neuter form fullt.

There actually is one: er.

The sentence structure is very close to English:

• Minnekortet = the memory card
• er = is
• fullt = full

So Minnekortet er fullt follows the same basic pattern as The memory card is full.

It can definitely mean full in the practical sense of having no more capacity, which is exactly how it works here.

So for a memory card, fullt means something like:

• full
• filled up
• out of space

Norwegian often uses the same everyday adjective full for both physical and non-physical capacity.

No, that would sound grammatically wrong in standard Norwegian.

Because minnekortet is neuter singular, you need:

• Minnekortet er fullt.

Using full instead of fullt would break adjective agreement.

That would be:

Minnekortene er fulle.

Breakdown:

• minnekortene = the memory cards
• er = are
• fulle = full (plural/definite form)

So the adjective changes like this:

• full = common gender singular
• fullt = neuter singular
• fulle = plural and definite contexts

A rough guide is:

MIN-ne-kor-te

A few helpful points:

• minne sounds roughly like MIN-neh
• kortet sounds roughly like KOR-te
• the r in Norwegian may vary by dialect
• the final t in fullt may be lightly pronounced or reduced in natural speech, depending on accent and speaking style

If you want to sound natural, put the main stress early in MINnekortet.

The normal word order is:

subject + verb + adjective

So:

• Minnekortet = subject
• er = verb
• fullt = adjective/predicate

This is the standard pattern in simple Norwegian statements, just like in English:

• The memory card is full.

This sentence is standard Bokmål.

In Nynorsk, you would more likely see:

Minnekortet er fullt.

So in this case, the sentence can look the same in both written standards.

Yes, if the context already makes it clear that you are talking about a memory card.

• Minnekortet er fullt. = The memory card is full.
• Kortet er fullt. = The card is full.

In everyday conversation, people often shorten things when the meaning is obvious from context.