Hon hänger den strukna klänningen på en galge direkt, annars blir den skrynklig igen.

It may look redundant from an English point of view, but this is normal Swedish grammar.

When a noun is definite and has an adjective before it, Swedish usually uses double definiteness:

• klänningen = the dress
• den strukna klänningen = the ironed dress

So:

• en struken klänning = an ironed dress
• den strukna klänningen = the ironed dress

If there were no adjective, you would normally just say klänningen, not den klänningen, unless you want extra emphasis like that dress.

Because the adjective is in a definite noun phrase.

The participle struken comes from stryka in the sense to iron. When it is used like an adjective, it changes form depending on the noun phrase.

Compare:

• en struken klänning = an ironed dress
• den strukna klänningen = the ironed dress

In definite phrases, adjectives usually take -a:

• den röda bilen
• det stora huset
• de gamla skorna

So strukna is the expected form here.

Here it means ironed or pressed.

It is the past participle of stryka, which can mean different things in different contexts, for example:

• stryka en skjorta = to iron a shirt
• stryka under = to underline
• stryka något = to cross something out

In this sentence, because it is talking about a dress and wrinkles, strukna clearly means ironed.

Yes. Swedish present tense often covers both ideas.

Hon hänger den strukna klänningen på en galge direkt can mean something like:

• She hangs the ironed dress up right away
• She is hanging the ironed dress up right away
• She always hangs the ironed dress up right away

Swedish does not have a separate progressive form like English is hanging in the same regular way. The plain present tense often does the job.

If you really want to stress an ongoing action, Swedish can use expressions like håller på att, but that is not needed here.

Because på is the normal preposition with galge in this context.

You hang a piece of clothing på en galge = on a hanger.

This is just the idiomatic Swedish choice. English learners sometimes expect a different preposition because Swedish and English prepositions do not match perfectly.

You could also hear:

• hänga upp klänningen på en galge

That means essentially the same thing, with upp making the action sound a bit more explicitly like hang up.

Here direkt means immediately, right away, or straight away.

So the idea is that she hangs it up without waiting, because otherwise it will wrinkle again.

Its placement is natural here, but Swedish adverbs can often move around a bit depending on emphasis. For example:

• Hon hänger den strukna klänningen direkt på en galge
• Hon hänger direkt den strukna klänningen på en galge
  This is less natural in everyday Swedish.

The original placement sounds very normal.

Annars means otherwise or if not.

The second clause means:

• otherwise it becomes wrinkly again
• more natural English: otherwise it will get wrinkled again

The word order is due to the Swedish V2 rule: in a main clause, the finite verb usually comes in the second position.

So when annars comes first, the verb must come next:

• Annars blir den skrynklig igen

Not:

• Annars den blir skrynklig igen

The same pattern appears in many Swedish main clauses:

• I dag kommer hon sent
• Sen går vi hem
• Där står bilen

Because bli expresses a change of state.

• bli skrynklig = become wrinkly / get wrinkled
• vara skrynklig = be wrinkly / be wrinkled

In this sentence, the point is not that the dress already has that quality, but that it will end up that way if she does not hang it up.

So:

• annars blir den skrynklig igen = otherwise it gets wrinkled again

Because skrynklig agrees with a singular common-gender noun.

The pronoun den refers to klänningen, and klänning is a common gender noun.

So the adjective form is:

• skrynklig for common gender singular
• skrynkligt for neuter singular
• skrynkliga for plural

Compare:

• Klänningen blir skrynklig
• Huset blir smutsigt
• Byxorna blir skrynkliga

Also note that this is a predicate adjective after bli, not an adjective directly before the noun. Predicate adjectives follow their own agreement pattern.

It refers to klänningen.

Since klänning is a common-gender noun, the pronoun is den.

So the sentence avoids repeating the noun:

• annars blir den skrynklig igen

Instead of:

• annars blir klänningen skrynklig igen

Both are grammatically possible, but the pronoun sounds more natural because the dress has just been mentioned.

Yes, absolutely.

Adding upp gives the verb a more explicit hang up meaning, and many speakers would find that version very natural.

So both are possible:

• Hon hänger den strukna klänningen på en galge direkt
• Hon hänger upp den strukna klänningen på en galge direkt

The version without upp is still fine, especially because på en galge already makes the meaning clear.