Odlično, sve je spremno.

Here odlično means excellent, great, or perfect.

In this sentence, it works like a short exclamation or reaction:

• Odlično! = Great! / Excellent!

So Odlično, sve je spremno. is like saying:

• Great, everything is ready.

Technically, odlično is the neuter singular form of the adjective odličan (excellent), but in sentences like this it is very often used on its own as an exclamation, much like an adverbial great!

You may see related forms:

• odličan = masculine singular
• odlična = feminine singular
• odlično = neuter singular

As a standalone reaction, Odlično! is completely natural.

Sve means everything here.

It is the neuter singular form used for all / everything, and in this sentence it is the subject:

• Sve je spremno. = Everything is ready.

Compare:

• sve = everything / all
• svi = all (masculine plural, usually for people or masculine nouns)
• sve can also mean all depending on context

Because Croatian normally uses the present tense of biti (to be) in this kind of sentence.

So:

• sve je spremno = literally everything is ready

The word je is the 3rd person singular present form of biti:

• je = is

Unlike in some informal styles or headlines, in normal spoken and written Croatian you usually keep je here.

Because spremno agrees with sve, which is treated as neuter singular.

So:

• sve = neuter singular
• spremno = neuter singular form of spreman (ready)

Agreement in Croatian matters a lot. Compare:

• On je spreman. = He is ready.
• Ona je spremna. = She is ready.
• Sve je spremno. = Everything is ready.

The basic dictionary form is spreman.

It means ready.

Its common gender forms are:

• spreman = masculine
• spremna = feminine
• spremno = neuter

In Sve je spremno, you see the neuter form because it matches sve.

Yes. In Sve je spremno, the subject is sve (everything).

The structure is:

• sve = subject
• je = verb (is)
• spremno = predicate adjective / complement

So literally:

• Everything is ready.

The comma separates the exclamation Odlično from the full statement sve je spremno.

It helps show the rhythm:

• Odlično, sve je spremno.

This is natural punctuation when the speaker first reacts and then gives information:

• Great, everything is ready.

You may also see:

• Odlično! Sve je spremno.

That version feels slightly more separated and emphatic.

Yes, Croatian word order is fairly flexible, but not every version sounds equally natural.

The most natural version here is:

• Odlično, sve je spremno.

You could also say:

• Sve je spremno. Odlično.

That sounds like:

• Everything is ready. Great.

But changing the order inside sve je spremno is less neutral:

• Spremno je sve is possible, but marked or stylistic
• Je sve spremno? is a question: Is everything ready?

So for a learner, Sve je spremno is the best standard pattern to remember.

A rough pronunciation guide for an English speaker is:

• Odlično ≈ OD-leech-no
• sve ≈ sveh
• je ≈ yeh
• spremno ≈ SPREM-no

A few key points:

• č sounds like ch in church
• je is usually pronounced like ye
• r in spremno is a tapped or rolled r

So the whole sentence is roughly:

• OD-leech-no, sveh yeh SPREM-no

Yes. Odlično is stronger and more enthusiastic than dobro.

Compare:

• dobro = good / okay / fine
• odlično = excellent / great
• sjajno = great / brilliant
• super = super / great (very common, informal)

So Odlično, sve je spremno. sounds more positive than:

• Dobro, sve je spremno.

You could, but it does not mean exactly the same thing.

• Sve je spremno. = Everything is ready.
• Sve je gotovo. = Everything is finished / done.

So:

• spremno focuses on readiness
• gotovo focuses on completion

Sometimes both can fit the situation, but they are not interchangeable in every context.

It is neutral and works in both everyday speech and standard written Croatian.

• Odlično is natural in conversation
• Sve je spremno is standard and normal

So you can use it in many situations:

• at home
• at work
• while organizing an event
• in messages or emails, depending on tone

It is neither especially formal nor especially slangy.