Dörren ser annorlunda ut.

Dörren is the definite form of dörr, so it means the door.

• en dörr = a door
• dörren = the door

In Swedish, the definite article is usually added to the end of the noun instead of being a separate word like English the.

Because dörren is the subject of the sentence: it is the thing that looks different.

The basic word order here is:

subject + verb + adverb + particle

So:

• Dörren = subject
• ser = verb
• annorlunda = adverb
• ut = particle

Ser ut is a very common Swedish expression meaning looks or appears.

So:

• Dörren ser ut = The door looks / appears

In this sentence, ser and ut belong together, even though another word comes between them.

This is similar to English phrasal verbs, where parts can sometimes be separated.

Because se ut is a particle verb, and in main clauses the particle is often placed later in the sentence.

So Swedish says:

• Dörren ser annorlunda ut.

not:

• Dörren ut ser annorlunda.

You should think of ser ut as one unit in meaning, even when the two parts are separated.

Annorlunda means differently or different depending on context. In this sentence it describes how the door looks, so natural English is different.

It works like an adverb here:

• ser annorlunda ut = looks different

Even though English uses an adjective in looks different, Swedish uses annorlunda in this structure.

Yes, but it is not exactly the same.

• Dörren ser annorlunda ut = The door looks different
  This focuses on appearance.
• Dörren är annorlunda = The door is different
  This is a stronger statement and can mean the door is different in a more general sense, not just in how it looks.

So ser ... ut is the more natural choice if you are talking about visual appearance.

Usually, yes. Se ut often refers to how something or someone appears visually.

Examples:

• Han ser trött ut. = He looks tired.
• Huset ser gammalt ut. = The house looks old.

It can sometimes be used more loosely, but for learners it is safest to connect se ut with appearance.

Yes. Swedish often uses V2 word order, which means the finite verb goes in the second position in main clauses.

For example, if you begin with a time word:

• I dag ser dörren annorlunda ut. = Today, the door looks different.

Notice that ser still stays in second position. Because of that, dörren moves after the verb.

A rough guide is DUR-ren, but the vowel is not exactly like English u.

A few helpful points:

• ö is a Swedish vowel that does not exist exactly in English
• rr is pronounced with a Swedish r sound
• the ending -en is the definite ending

If you want to approximate it as an English speaker, DUR-ren is a useful starting point, but listening to native audio is important for getting ö right.

Because Swedish does not need a dummy subject like English it when the real subject is already there.

English can say:

• The door looks different.

and that matches Swedish directly:

• Dörren ser annorlunda ut.

So Swedish is using the actual subject the door, not an extra word like it.

Usually no, not in this context.

• annorlunda = different / differently
• olika = different in the sense of several things being different from each other

So:

• Dörren ser annorlunda ut = one door looks different than before / than expected
• Dörrarna ser olika ut = the doors look different from one another

A single thing that has changed or seems unusual is usually annorlunda, not olika.

Yes. Ser is the present tense of se.

• se = to see
• ser = see / sees
• ser ut = looks

So Dörren ser annorlunda ut means The door looks different in the present.