Kortudstederen er banken.

It is a compound noun, which is very common in Danish.

You can break it down like this:

• kort = card
• udsteder = issuer
• -en = the

So:

• kortudsteder = card issuer
• kortudstederen = the card issuer

The middle part udsteder comes from the verb udstede, which means to issue.

Because Danish usually expresses the definite article as a suffix attached to the noun.

Compare:

• en bank = a bank

• banken = the bank

• en kortudsteder = a card issuer
• kortudstederen = the card issuer

For a native English speaker, this is one of the biggest structural differences:

• English: the bank
• Danish: banken

So in this sentence, both nouns are definite:

• kortudstederen = the card issuer
• banken = the bank

This sentence is an identity statement: one specific thing is being identified as another specific thing.

So Danish is saying:

• the card issuer = the bank

That is perfectly normal when both sides refer to definite, known entities.

This is similar to English sentences like:

• The winner is John.
• The problem is the weather.

In Danish, definite nouns on both sides of er are very natural when you are equating two specific things.

Because Danish normally does not use a separate definite article before the noun in cases like this. Instead, the noun itself takes the definite ending.

So:

• English: the bank
• Danish: banken

The same thing happens with many nouns:

• bilen = the car
• huset = the house
• manden = the man

A separate word like den or det can appear in other structures, especially with adjectives, for example:

• den store bank = the big bank

But in banken, no separate word is needed.

Yes. Er is the present tense of at være, which means to be.

So:

• jeg er = I am
• du er = you are
• han/hun er = he/she is

In this sentence:

• Kortudstederen er banken = The card issuer is the bank

So er works very much like English is here.

This is the normal word order for a simple statement in Danish:

• Subject + verb + complement

So:

• Kortudstederen = subject
• er = verb
• banken = complement

This matches English quite closely:

• The card issuer
  • is
    • the bank

So there is nothing unusual about the word order in this sentence.

Yes, you can. It is grammatically correct.

Both sentences are possible:

• Kortudstederen er banken
• Banken er kortudstederen

The difference is mainly focus.

• Kortudstederen er banken focuses first on the card issuer
• Banken er kortudstederen focuses first on the bank

So the choice depends on what you are talking about already, or what you want to emphasize.

Both are common gender nouns, which is why they take en in the indefinite and -en in the definite singular.

Examples:

• en bank → banken
• en kortudsteder → kortudstederen

Danish has two genders:

• common gender
• neuter

A neuter noun would typically use:

• et in the indefinite
• -et in the definite

For example:

• et kort = a card
• kortet = the card

So in kortudstederen, the whole compound behaves as a common gender noun because the head noun udsteder is common gender.

In Danish, compounds are usually written as one word, much more often than in English.

So English might write:

• card issuer

But Danish usually writes:

• kortudsteder

The final part of the compound is the most important part grammatically. That final part determines things like:

• gender
• plural form
• definite ending

Here:

• final part = udsteder
• therefore the whole compound behaves like en udsteder

That is why you get:

• en kortudsteder
• kortudstederen

Yes. Danish can also use a possessive-style construction:

• kortets udsteder = the card’s issuer / the issuer of the card

That is a little different in structure from kortudstederen.

Compare:

• kortudstederen = the card issuer
  
  • a compact compound noun
• kortets udsteder = the issuer of the card
  
  • a genitive construction

In many contexts, the compound kortudstederen sounds more natural and standard, especially in formal or financial language.

A rough learner-friendly guide would be:

• Kortudstederen ≈ KORT-oo-stay-thuh-ren
• er ≈ a weak air sound, often very reduced
• banken ≈ BANG-gen or BANK-en, depending on accent and how carefully it is spoken

A few important notes:

• d in Danish is often softer than English d
• er is often pronounced very lightly in normal speech
• compounds like kortudstederen may sound more connected and reduced than the spelling suggests

If you are learning pronunciation, it is best to hear this from native audio, because Danish pronunciation is often less phonetic than the spelling suggests.

If you wanted an indefinite version, you would change the nouns accordingly.

For example:

• En kortudsteder er en bank
  = A card issuer is a bank

But that changes the meaning a lot. It becomes a more general statement, not an identification of a specific issuer and a specific bank.

So compare:

• Kortudstederen er banken
  = a specific identity statement

• En kortudsteder er en bank
  = a general classification statement

That is why the definite forms in the original sentence are important.

Yes, it sounds especially natural in a financial, legal, banking, or informational context.

The word kortudsteder is not a very casual everyday noun for many learners; it belongs more to administrative or financial vocabulary, such as:

• bank documents
• card agreements
• payment information
• customer service explanations

So the grammar is completely normal, but the vocabulary has a somewhat formal or technical feel.