Flyttebilen er klar.

It is a compound noun:

• flytte- = moving, relocation
• bilen = the car / the truck

So flyttebilen literally means something like the moving truck.

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

Because bilen is the definite form: the car / the truck.

• en bil = a car / a truck
• bilen = the car / the truck

So:

• Flyttebil = moving truck (dictionary/basic form)
• Flyttebilen = the moving truck

Norwegian often adds the definite article to the end of the noun instead of using a separate word like the.

In Norwegian, definiteness is often built into the noun itself with an ending.

For example:

• en bil = a car
• bilen = the car

So flyttebilen already includes the idea of the. You do not say den flyttebilen here unless you specifically need that/the specific moving truck in a different structure.

Flyttebilen er klar is a statement:
The moving truck is ready.

If you say Er flyttebilen klar?, that becomes a question:
Is the moving truck ready?

So the difference is mainly:

• Flyttebilen er klar. = statement
• Er flyttebilen klar? = yes/no question

Er is the present tense of å være = to be.

So:

• jeg er = I am
• du er = you are
• han/hun er = he/she is
• flyttebilen er = the moving truck is

In this sentence, er simply means is.

Klar means ready.

It stays klar here because it agrees with flyttebilen, and bil is a common-gender noun (en bil).

Compare:

• Bilen er klar. = The car is ready.
• Huset er klart. = The house is ready.

So:

• common gender noun → often klar
• neuter noun → often klart

That is why this sentence has klar, not klart.

Yes, that can be confusing.

Bil often means car, but in compounds it can sometimes refer more broadly to a vehicle, depending on context. Flyttebil is commonly understood as a moving van / moving truck.

So even though bil by itself often means car, the compound flyttebil has its own established meaning.

Depending on context, natural translations could be:

• The moving truck is ready.
• The moving van is ready.

If the situation is informal, English might also say:

• The truck’s ready.
• The van is ready.

The exact choice depends on what kind of vehicle is meant.

A rough guide is:

• flytte sounds approximately like FLYT-te
• bilen sounds approximately like BEE-len

Together: FLYT-te-bee-len

A few useful notes:

• y in Norwegian is not the same as English y. It is a rounded vowel that many English speakers find tricky.
• The tt in flytte is pronounced as a clear double consonant.
• The stress is usually on the first part: FLYTTEbilen.

Usually klar is the better choice here if you mean ready.

• klar = ready
• ferdig = finished / done

So:

• Flyttebilen er klar. = The moving truck is ready.
• Flyttebilen er ferdig. would sound more like The moving truck is finished, which is usually not what you mean.

If you mean that loading is completed, you might instead say something like:

• Flyttebilen er ferdig lastet. = The moving truck is finished being loaded.

It sounds completely natural and everyday.

It is a short, standard Norwegian sentence:

• noun + er + adjective

That pattern is extremely common:

• Maten er klar. = The food is ready.
• Bilen er klar. = The car is ready.
• Rommet er klart. = The room is ready.

So Flyttebilen er klar. is a normal, natural sentence.