Vi reiser øst i morgen.

In Norwegian, the present tense is very often used for future events when a time expression already makes the future clear. Here, i morgen tells you it is happening in the future.

So Vi reiser øst i morgen is similar to English We leave tomorrow.

If you want to stress intention or a planned action, you could also say Vi skal reise øst i morgen.

Reiser is the present tense of å reise. It usually means travel, go on a journey, or head off.

In this sentence, a natural English sense is:

• We’re traveling east tomorrow
• We’re heading east tomorrow
• We leave for the east tomorrow only in some contexts

Norwegian often uses reise where English might simply use go.

Here, øst is being used to show direction: east or eastward.

When Norwegian talks about moving in a direction, it often uses the direction word on its own:

• reise øst = travel east
• kjøre nord = drive north
• gå sørover = walk southward

You would use til if you were going to a specific place:

• Vi reiser til Oslo i morgen

So til øst sounds unnatural here unless East is a specific named destination, which it usually is not.

Øst and østen are not used the same way.

• øst = east, used as a direction
• østen = the east, used more like a noun

In this sentence, the meaning is directional, so øst is the natural choice.

Compare:

• Vi reiser øst = We’re traveling east
• Østen can refer to the East as a region or concept

Yes. Østover is also possible and means eastward(s).

So these are both possible:

• Vi reiser øst i morgen
• Vi reiser østover i morgen

The version with østover sounds a little more explicitly directional. The version with øst is shorter and very natural.

Even though it may look like that word-for-word, i morgen is a fixed expression meaning tomorrow.

So in this sentence, i morgen definitely means tomorrow, not in the morning.

If you want to say in the morning, you would usually say something like:

• om morgenen = in the morning
• i morgen tidlig = tomorrow morning

Because in standard Norwegian, i morgen is normally written as two words.

It is simply the normal spelling of the time expression meaning tomorrow. As a learner, it is best to memorize it as a fixed phrase: i morgen.

Yes, that is completely correct.

Norwegian often moves time expressions to the front of the sentence. When that happens, the verb still has to stay in the second position. That gives you:

• Vi reiser øst i morgen
• I morgen reiser vi øst

Both are natural. But I morgen vi reiser øst is wrong, because Norwegian main clauses follow the verb-second pattern.

Normally, yes, you need vi.

Standard Norwegian usually requires an expressed subject in a full sentence:

• Vi reiser øst i morgen

Leaving out vi would usually sound incomplete unless you are writing notes, headlines, or very informal fragments.

Because compass directions in Norwegian are normally written with lowercase letters when they are used as ordinary words:

• nord
• sør
• øst
• vest

They are only capitalized when they are part of a proper name, such as a place name.