Javnobilježnički ured otvoren je danas.

Javnobilježnički means related to a notary public. It comes from javni bilježnik = notary public.

Croatian often makes long adjectives from nouns, so:

• javni bilježnik = notary public
• javnobilježnički = notarial / belonging to a notary public

So javnobilježnički ured means a notary’s office or notarial office.

Because here it is functioning as a single adjective modifying ured.

Croatian commonly forms one-word adjectives from multi-word expressions. So although the noun phrase is javni bilježnik, the related adjective is javnobilježnički.

That is normal word formation in Croatian, even if it looks long to an English speaker.

It is nominative singular masculine.

• ured is a masculine noun meaning office
• javnobilježnički agrees with ured, so it is also masculine singular nominative

This whole phrase is the subject of the sentence.

Because otvoren has to agree with ured.

Since ured is:

• masculine
• singular

the matching form is otvoren.

Compare:

• ured je otvoren = the office is open
• trgovina je otvorena = the shop is open
• more je otvoreno = the sea is open

So the ending changes depending on the noun it describes.

In this sentence, it works like an adjective meaning open, but historically it is also related to a participle form.

For a learner, the most useful way to think about it is:

• je otvoren = is open

So in everyday use here, treat it as the descriptive word that agrees with ured.

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

So:

• ured je otvoren = the office is open

Croatian often uses these short forms of biti in ordinary sentences:

• sam = am
• si = are
• je = is
• smo = are
• ste = are
• su = are

Yes, other word orders are possible.

Croatian word order is more flexible than English. The sentence you were given sounds natural, especially in a formal or notice-like style:

• Javnobilježnički ured otvoren je danas.

But these are also possible:

• Javnobilježnički ured je otvoren danas.
• Javnobilježnički ured je danas otvoren.

The meaning stays basically the same, but the emphasis and style can shift slightly. The given version sounds a bit more formal or written.

Because Croatian has no articles.

English says:

• the office
• an office

Croatian usually just says:

• ured

So whether it means the office, an office, or just office depends on context. In this sentence, English would normally translate it as the notary’s office is open today.

Danas is an adverb meaning today.

It does not change for case, gender, or number. It is much simpler than a noun phrase. It just tells you when the office is open.

Yes. Croatian allows fairly flexible placement of adverbs like danas.

For example:

• Javnobilježnički ured otvoren je danas.
• Javnobilježnički ured je danas otvoren.
• Danas je javnobilježnički ured otvoren.

All of these are possible. The choice depends on emphasis:

• putting danas earlier often emphasizes today
• putting it later can sound more neutral

It can mean either, depending on context.

In real life, with office, the usual meaning is:

• open for business
• receiving clients today

So this sentence would normally be understood as the notary’s office is open today, not just the door is open.

A rough English-friendly pronunciation would be:

YAHV-noh-bee-LYEZH-nich-kee

A few useful sound notes:

• j sounds like English y
• lj is a soft sound, somewhat like the lli in million
• ž sounds like the s in measure
• č sounds like ch in church

It is a long word, but Croatian spelling is very regular, so once you know the letter sounds, it becomes much easier.