Premija osiguranja raste.

Because osiguranja is in the genitive case, and Croatian often uses this structure to mean premium of insurance = insurance premium.

So:

• premija = premium
• osiguranje = insurance
• osiguranja = of insurance (genitive singular)

This is a very common Croatian noun + genitive pattern:

• cijena proizvoda = price of the product
• boja auta = color of the car
• premija osiguranja = insurance premium

Premija is in the nominative singular because it is the subject of the sentence.

The verb raste agrees with it, so the sentence is built like:

• Premija osiguranja = the insurance premium
• raste = is increasing / rises

Since premija is doing the action of increasing, it appears in the nominative.

Raste is present tense, 3rd person singular, from the verb rasti = to grow / to rise / to increase.

Here it means something like:

• is rising
• is increasing
• goes up

Croatian present tense often covers both simple present and present continuous meanings that English separates:

• Premija osiguranja raste. = The insurance premium rises. = The insurance premium is rising.

Because the subject premija is singular.

• premija = one premium
• raste = singular verb form

If the subject were plural, the verb would also be plural:

• Premije osiguranja rastu. = Insurance premiums are rising.

So the agreement is:

• singular subject → raste
• plural subject → rastu

The dictionary form is rasti.

This is an imperfective verb, which is important because it describes an ongoing process or general change:

• rasti = to grow, to increase, to rise

Some present-tense forms are:

• ja rastem = I grow / am growing
• ti rasteš = you grow / are growing
• on/ona/ono raste = he/she/it grows / is growing
• mi rastemo = we grow / are growing
• vi rastete = you grow / are growing
• oni/one/ona rastu = they grow / are growing

Yes, it is a very natural and standard way to say it.

Croatian often expresses this kind of idea with:

• a main noun
• followed by another noun in the genitive

So instead of using an adjective like English sometimes does, Croatian commonly says:

• premija osiguranja = premium of insurance

This is fully normal and idiomatic.

Yes, Croatian word order is more flexible than English, but Premija osiguranja raste is the most neutral and straightforward order.

Possible variations can exist for emphasis, for example:

• Raste premija osiguranja.
• Osiguranja premija raste. — this one sounds unnatural in normal usage

In ordinary statements, the original order is best:

• Premija osiguranja raste.

So although Croatian allows flexibility, not every rearrangement sounds equally natural.

Because Croatian does not have articles like English a/an/the.

So:

• premija can mean a premium, the premium, or just premium
• the exact meaning depends on context

In this sentence, English usually translates it naturally as:

• The insurance premium is rising.

But Croatian does not need a separate word for the.

A rough pronunciation guide is:

• Premija ≈ PREH-mee-ya
• osiguranja ≈ oh-see-goo-RAHN-ya
• raste ≈ RAH-steh

A few useful notes:

• j in Croatian is pronounced like English y in yes
• ija in premija sounds like ee-ya
• nj in osiguranja is like the ny sound in canyon
• stress can vary by region and teaching style, but the rough guide above is good enough for a beginner

Yes. The verb rasti literally means to grow, but it is also commonly used for things that increase in value, size, level, or amount.

So depending on context, raste can mean:

• grows
• rises
• increases

With premija osiguranja, the natural English meaning is:

• is rising
• is increasing

not usually is growing, even though that is the literal core meaning of the verb.

You would change both the subject and the verb:

• Premije osiguranja rastu. = Insurance premiums are rising.

Changes:

• premija → premije = premiums
• raste → rastu = are rising

The genitive noun osiguranja stays the same here because it still means of insurance in the same relationship.

It is neutral and perfectly normal in both formal and everyday contexts.

You could see it in:

• news
• financial writing
• insurance documents
• ordinary conversation

It sounds factual and standard, not especially casual or especially literary.