Iznos osiguranja je visok.

Literally, iznos osiguranja means amount of insurance.

• iznos = amount, sum
• osiguranja = of insurance

So the phrase is built like noun + noun in the genitive case, which is very common in Croatian for expressing of relationships.

Because osiguranja is the genitive singular form of osiguranje.

• nominative: osiguranje = insurance
• genitive: osiguranja = of insurance

In Croatian, when one noun describes another in an of relationship, the second noun often goes into the genitive:

• iznos osiguranja = amount of insurance
• cijena kuće = price of the house
• boja auta = color of the car

So iznos osiguranja is grammatically the same kind of structure.

Because the adjective agrees with iznos, not with osiguranje.

The head noun of the subject is iznos, and iznos is:

• masculine
• singular

So the adjective must also be masculine singular:

• iznos ... je visok

Compare:

• Iznos je visok. = The amount is high.
• Cijena je visoka. = The price is high.
  (cijena is feminine)
• Osiguranje je visoko would not fit this meaning, and visoko is neuter anyway.

So visok matches iznos.

Je is the 3rd person singular present tense of biti = to be.

So:

• je = is

The sentence structure is:

• Iznos osiguranja = the insurance amount
• je = is
• visok = high

So the whole sentence means:

• The insurance amount is high.

Croatian usually needs this verb in this kind of sentence, just like English does.

Because Croatian does not have articles like a or the.

English says:

• The insurance amount is high.

Croatian simply says:

• Iznos osiguranja je visok.

Whether something is understood as a or the depends on context, not on a separate article word.

Yes, you often could, but the nuance is a little different.

• visok = high
• velik = big, large

With things like prices, costs, amounts, salaries, and percentages, Croatian often uses visok in places where English uses high:

• visoka cijena = high price
• visok iznos = high amount
• visoka plaća = high salary

Velik is possible in some contexts, but visok is usually the more natural choice when talking about numerical levels or amounts.

Yes. The whole phrase iznos osiguranja is the subject.

More precisely:

• iznos is the main noun
• osiguranja depends on it and specifies what kind of amount it is

So the subject is not just osiguranja. The core subject is iznos, and that is why the verb is singular (je) and the adjective is masculine singular (visok).

Yes. Croatian word order is more flexible than English word order.

The neutral, straightforward version is:

• Iznos osiguranja je visok.

But you may also hear variations like:

• Visok je iznos osiguranja.

This version puts more focus on visok.

Even though the word order can change, the meaning stays basically the same because the endings show the grammatical relationships. Still, for learners, the original order is the safest and most neutral one.

A simple approximate pronunciation for an English speaker is:

• EEZ-noss oh-see-GOO-rah-nya yeh VEE-sok

A few helpful notes:

• z in iznos sounds like z in zoo
• j in Croatian is pronounced like y in yes
• nj in osiguranja sounds like the ny in canyon
• v is always a clear v, never w

A more careful breakdown:

• iznos = EEZ-noss
• osiguranja = oh-see-goo-RAH-nya
• je = yeh
• visok = VEE-sok

Usually, yes, in everyday contexts like finance, health, cars, or property.

Examples:

• zdravstveno osiguranje = health insurance
• životno osiguranje = life insurance
• iznos osiguranja = insurance amount / insured amount

Depending on context, it may refer to the insurance itself, the coverage, or the insured sum. So in real-life use, translation can vary a little, but insurance is the basic meaning learners should know first.

Yes. This sentence shows a very useful pattern:

[noun] + [genitive noun] + je + [adjective]

For example:

• Iznos kredita je visok. = The loan amount is high.
• Cijena goriva je visoka. = The fuel price is high.
• Trošak popravka je velik. = The repair cost is large.

So this sentence is a good model for building many similar statements.