Az önrész fontos.

Hungarian has two forms of the definite article:

• a before most consonant sounds
• az before vowel sounds

Because önrész begins with ö, a vowel, the correct form is az.

So:

• az önrész
• but a fontos dolog

This is similar to a/an in English, but Hungarian uses this distinction only with the definite article.

In Hungarian, the verb to be is often left out in the present tense, third person.

So:

• Az önrész fontos. = The deductible/self-payment is important.

There is no separate word for is here, but the sentence is complete and natural.

Compare:

• Én fontos vagyok. = I am important.
• Te fontos vagy. = You are important.
• Az önrész fontos. = The deductible is important.

So the omission happens specifically in sentences like X important, X big, X expensive, etc., when the subject is he/she/it or a noun.

Here fontos is not directly describing the noun inside a noun phrase. It is the predicate adjective of the sentence.

So:

• Az önrész fontos. = The deductible is important.

But if you want important deductible as a noun phrase, then the adjective goes before the noun:

• a fontos önrész = the important deductible

So the difference is:

• Az önrész fontos. → full sentence
• a fontos önrész → noun phrase

Yes, önrész is a compound noun.

It is made up of:

• ön = self / own
• rész = part / share

So literally it suggests something like one’s own share/part.

In real usage, it often refers to a financial amount that you pay yourself, such as a:

• deductible
• co-payment
• own contribution

This literal structure is useful to know because Hungarian often builds vocabulary through compounds like this.

Not really, even though the form looks the same.

In önrész, ön is part of a compound meaning self / own. It is not the polite pronoun Ön meaning you.

So in this word, you should think of önrész as a fixed vocabulary item, not as your part built from the pronoun Ön.

You can see the same ön- element in other words too, such as:

• önbizalom = self-confidence
• önkontroll = self-control
• önéletrajz = autobiography / CV

A simple pronunciation guide is:

• Az ≈ uz
• önrész ≈ urn-rayss (very approximate)
• fontos ≈ fon-tosh

A few useful points:

• Hungarian stress is usually on the first syllable of each word:
  • AZ
  • ÖN-rész
  • FON-tos
• ö is a rounded front vowel, somewhat like the vowel in German schön or French peu
• sz is pronounced like English s
• plain s is pronounced like English sh

So:

• rész has sz = s
• fontos ends with s = sh

Yes. Fontos az önrész is also correct.

Both mean the same basic thing, but the emphasis is slightly different:

• Az önrész fontos. → neutral, topic-first
• Fontos az önrész. → emphasizes important

Hungarian word order is flexible and often shows focus or what is being emphasized, rather than changing the core meaning.

Because here önrész is the subject of the sentence, so it appears in its basic dictionary form, with no extra case ending.

Hungarian often adds endings to nouns, but the subject is usually unmarked:

• Az önrész fontos. = The deductible is important.

If the noun had another role, it could take a suffix. For example, in other contexts you might see forms like:

• önrészt = accusative
• önrésszel = with a deductible / with own contribution

But in this sentence, the plain form is correct.

The plural is önrészek.

So:

• Az önrész fontos. = The deductible is important.
• Az önrészek fontosak. = The deductibles are important.

Notice that when the subject becomes plural, the adjective also changes:

• singular: fontos
• plural: fontosak

Also, in the plural sentence, Hungarian still does not need a separate word for are in the present tense:

• Az önrészek fontosak.

It is natural Hungarian, especially in financial or insurance contexts, but the exact word choice depends on context.

For example, önrész is common when talking about:

• insurance
• loans
• purchases requiring your own contribution
• costs partly paid by you

So the sentence is grammatically simple, but the noun itself belongs to a somewhat specific vocabulary area. That is normal in Hungarian: a sentence can be structurally easy even if one word is specialized.