Middagen är strax klar, så du kan vänta i vardagsrummet.

Because Swedish uses the definite form here.

• middag = a dinner / dinner
• middagen = the dinner

In this sentence, the speaker means a specific meal that both people know about, so Swedish naturally uses middagen. English often just says Dinner is almost ready, but Swedish usually makes it definite: Middagen är ...

Also, middag is an en-word, so its definite singular form is middagen.

Swedish often uses the present tense for the near future when the context already makes the time clear.

So:

• Middagen är strax klar
  literally: The dinner is ready soon
• natural English: Dinner will be ready soon

Words like strax, snart, i morgon, and similar time expressions often let Swedish use the present tense where English prefers a future form.

Strax means something like:

• soon
• shortly
• in a moment
• before long

In this sentence, it means the dinner will be ready very soon.

You may also see strax in other uses, for example:

• strax före två = just before two
• jag kommer strax = I’ll be right back / I’ll come in a moment

Because klar agrees with middag, and middag is an en-word.

With predicate adjectives in Swedish:

• en word, singular → klar
• ett word, singular → klart
• plural → klara

Examples:

• Middagen är klar.
• Bordet är klart.
• Sakerna är klara.

So klar is correct because middag is common gender singular.

Yes. Klar and färdig can both mean ready here.

• Middagen är klar = very natural
• Middagen är färdig = also natural

A rough difference is:

• klar can mean ready / done / finished
• färdig often strongly suggests finished / completed

But with food, both are common and idiomatic.

Here så is functioning as a coordinating conjunction meaning so / therefore. After a coordinating conjunction, the next clause usually keeps normal main-clause word order:

• du kan vänta

So the neutral pattern is:

• Middagen är strax klar, så du kan vänta ...

If you say så kan du vänta, that is possible in some contexts, but it sounds more marked, more like so then you can wait... or in that case, you can wait...

Because kan changes the meaning.

• du väntar = you are waiting / you wait
• du kan vänta = you can wait / you may wait

So this sentence is not describing what the person is doing. It is saying what the person is allowed or able to do.

Because modal verbs in Swedish are followed directly by the infinitive.

Common modal verbs include:

• kan = can
• ska = will / shall / going to
• vill = want to
• måste = must

So you say:

• du kan vänta
• jag vill gå
• hon måste läsa

Not:

• du kan att vänta

That would be incorrect.

Because vänta by itself can mean simply wait.

• vänta = wait
• vänta på någon/något = wait for someone/something

In this sentence, there is no object after vänta. Instead, the sentence tells you where to wait:

• vänta i vardagsrummet = wait in the living room

If you wanted wait for dinner, then you would need på:

• vänta på middagen

There are two things happening here:

1. i means in, because you are inside a room.
2. vardagsrummet is definite, meaning the living room.

So:

• ett vardagsrum = a living room
• vardagsrummet = the living room

Swedish uses the definite form because it means a specific living room, probably the one in the house where both people are.

Because Swedish forms compound nouns very freely.

Here:

• vardag = weekday / everyday life
• rum = room
• vardagsrum = living room
• vardagsrummet = the living room

A useful rule: in Swedish compounds, the last part is the main noun, and it decides the gender and the ending.

So since rum is an ett-word, vardagsrum is also an ett-word.

Not always, but it is natural here.

The sentence joins two full clauses:

• Middagen är strax klar
• du kan vänta i vardagsrummet

In modern Swedish, a comma before words like så, men, or och is often optional, especially in shorter sentences. Many writers include it when it helps readability.

So both of these can be acceptable:

• Middagen är strax klar, så du kan vänta i vardagsrummet.
• Middagen är strax klar så du kan vänta i vardagsrummet.

Usually in modern standard Swedish, middag means dinner, especially the main cooked meal.

But it is not a perfect one-to-one match in every context. Historically, the word is connected to midday, and in some dialects or older usage it can refer to a meal earlier in the day.

So for most learners, middag = dinner is a good rule, but it is worth knowing the word has some historical and regional variation.

A simple approximate pronunciation guide is:

• Middagen → MID-da-gen
• är → roughly like air, but not exactly
• strax → straks
• klar → klar
• så → soh
• du → doo with a Swedish u
• kan → kahn
• vänta → VEN-ta
• i → ee
• vardagsrummet → VAR-dags-rum-met

A few helpful notes:

• The main stress is on MID in Middagen
• The main stress is on VAR in vardagsrummet
• Swedish ä in är and vänta is not exactly like any single English vowel, so it takes practice

If you want, I can also break the whole sentence down into syllables and give a more IPA-style pronunciation guide.