Dnevna ulaznica je skupa.

• dnevna = daily
• ulaznica = ticket, especially an entry/admission ticket
• je = is
• skupa = expensive

So the sentence literally means Daily ticket is expensive, and in natural English: The daily ticket is expensive or A daily ticket is expensive, depending on context.

Because dnevna is an adjective, and it must agree with the noun ulaznica.

Here:

• ulaznica is feminine
• singular
• nominative

So the adjective also takes the feminine singular nominative form:

• masculine: dnevni
• feminine: dnevna
• neuter: dnevno

That is why it is dnevna ulaznica, not dnevni ulaznica.

For the same reason: skupa is an adjective and it agrees with ulaznica, which is feminine singular.

Even though skupa comes after je and functions like expensive in English, Croatian still makes it match the subject:

• ulaznica je skupa = the ticket is expensive
• automobil je skup = the car is expensive
• vino je skupo = the wine is expensive

So:

• skup = masculine
• skupa = feminine
• skupo = neuter

Yes, ulaznica is feminine.

A very common clue is the ending -a, since many Croatian feminine nouns end in -a. That is not a perfect rule, but it works very often.

Because ulaznica is feminine, adjectives that describe it also appear in feminine forms:

• dnevna ulaznica
• skupa ulaznica

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

So ulaznica can mean:

• a ticket
• the ticket

The exact meaning depends on context.

That means Dnevna ulaznica je skupa. could be understood as:

• The daily ticket is expensive.
• A daily ticket is expensive.

In most real situations, the surrounding context makes it clear which one is meant.

Je is the 3rd person singular present tense of the verb biti (to be).

So:

• ja sam = I am
• ti si = you are
• on/ona/ono je = he/she/it is

In this sentence:

• ulaznica je skupa = the ticket is expensive

Yes, skupa can sometimes be used in the sense of together in everyday speech.

But in this sentence, skupa is clearly an adjective meaning expensive, because it agrees with ulaznica:

• ulaznica is feminine singular
• skupa is also feminine singular

So here it is definitely expensive, not together.

It is in the nominative singular.

Why? Because dnevna ulaznica is the subject of the sentence, and subjects are normally in the nominative.

So:

• dnevna ulaznica = nominative singular
• je skupa = predicate part describing the subject

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

The neutral order here is:

• Dnevna ulaznica je skupa.

But you could also hear:

• Skupa je dnevna ulaznica.
• Ulaznica je skupa. (if daily is understood or unimportant)

Changing the order usually changes the focus or emphasis, not the basic meaning.

For example:

• Dnevna ulaznica je skupa. = neutral statement
• Skupa je dnevna ulaznica. = emphasis on expensive

A rough English-friendly guide is:

DNYEV-na oo-LAZ-nee-tsa yeh SKOO-pa

A few helpful points:

• dj / dn / dv clusters can feel harder for English speakers, so say dnevna slowly at first.
• c in Croatian is pronounced like ts.
• j is pronounced like English y in yes.
• u is pronounced like oo in food.

So:

• ulaznica sounds like oo-LAZ-nee-tsa
• je sounds like yeh

It is a very natural phrase, yes.

• ulaznica = admission/entry ticket
• dnevna ulaznica = daily ticket / day ticket

It is the kind of phrase you would commonly see at:

• museums
• swimming pools
• fairs
• tourist attractions
• public events

So it sounds normal and idiomatic.

Sometimes yes, but the meaning can shift depending on context.

• ulaznica specifically suggests an entry/admission ticket
• karta is a broader word and can mean ticket, card, or map, depending on context

So ulaznica is a good choice when you mean a ticket that allows entry to a place or event.

In the plural, all the agreeing words change:

• singular: Dnevna ulaznica je skupa.
• plural: Dnevne ulaznice su skupe.

Changes:

• dnevna → dnevne
• ulaznica → ulaznice
• je → su
• skupa → skupe

This is a good example of how Croatian agreement works across the whole sentence.