Ik wil vanavond gewoon thuis blijven.

Because Dutch main clauses usually put the conjugated verb in second position. Here, wil is the conjugated form of willen.

The other verb, blijven, stays in the infinitive and goes to the end because it depends on the modal verb willen.

So the pattern is:

Ik + wil + ... + blijven

Compare:

Ik wil slapen.
Ik wil vanavond thuisblijven.

This is very normal Dutch word order.

After a modal verb like willen, Dutch uses a bare infinitive, without te.

So you say:

Ik wil blijven.
not: Ik wil te blijven.

Common modal verbs that work this way are:

• willen = to want
• kunnen = can, to be able to
• mogen = may, to be allowed to
• moeten = must, to have to
• zullen = will, shall

But with other verbs, te may appear:

Ik probeer thuis te blijven.

So the lack of te here is completely normal.

Vanavond means this evening or tonight, depending on context.

It is a single word in Dutch.

Examples:

Ik werk vanavond. = I’m working tonight.
Kom je vanavond? = Are you coming tonight?

A useful comparison:

• vanavond = tonight / this evening
• 's avonds = in the evening / in the evenings

So vanavond refers to this specific evening, not evenings in general.

Here, gewoon means something like just, simply, or for no special reason.

So it gives the sentence a casual tone:

Ik wil vanavond gewoon thuis blijven.
= I just want to stay home tonight.

It can suggest:

• nothing fancy
• no big explanation
• a simple preference

Be careful: gewoon does not always mean the same thing. In other contexts it can also mean normal or ordinary.

For example:

Dat is heel gewoon. = That is very normal.
Ik wil gewoon slapen. = I just want to sleep.

This is a very common question.

• huis is a noun: house
• thuis is usually an adverb: at home / home

So:

Ik ben thuis. = I am at home.
Ik blijf thuis. = I’m staying home.
Het huis is groot. = The house is big.

You usually use thuis when talking about someone’s location or destination in the sense of home.

A native English speaker may want to translate home as huis, but in many sentences Dutch prefers thuis.

You will often see the infinitive written as thuisblijven as one word, especially when it functions as a fixed verb meaning to stay home.

So many writers would prefer:

Ik wil vanavond gewoon thuisblijven.

But when the verb is finite, the parts are naturally separated:

Ik blijf vanavond gewoon thuis.

So a useful way to think about it is:

• dictionary / infinitive form: thuisblijven
• finite sentence: Ik blijf thuis

The version thuis blijven is understandable, but learners will very often encounter thuisblijven as the standard infinitive.

Yes, the word order can change somewhat, depending on emphasis.

The given sentence sounds natural and neutral:

Ik wil vanavond gewoon thuis blijven.

Here:

• vanavond sets the time early
• gewoon adds the idea of just / simply
• thuis gives the location
• blijven stays at the end

Other versions are possible:

Ik wil gewoon vanavond thuisblijven.
This puts slightly more emphasis on gewoon.

Vanavond wil ik gewoon thuisblijven.
This emphasizes vanavond more strongly.

So Dutch has flexibility, but the original order is a very normal one.

Not necessarily. In Dutch, ik wil is often more neutral than English I want, especially in ordinary conversation.

In this sentence, it sounds natural:

Ik wil vanavond gewoon thuisblijven.

It expresses a personal wish or plan, not usually a rude demand.

If you want to sound softer, you could say things like:

Ik zou vanavond gewoon thuis willen blijven.
= I’d just like to stay home tonight.

Ik blijf vanavond liever thuis.
= I’d rather stay home tonight.

But ik wil is perfectly normal here.

Yes. That is a very natural alternative.

There is a small difference:

• Ik wil vanavond gewoon thuis blijven. = I want to stay home tonight.
• Ik blijf vanavond gewoon thuis. = I’m staying home tonight.

The first focuses on the wish/intention.
The second sounds more like a decision or plan.

Both are common, but they are not exactly the same.