Vstupné je drahé.

Here vstupné means admission fee, entrance fee, or simply admission in the sense of the money you pay to get in.

So the sentence means something like:

• Admission is expensive.
• The entrance fee is expensive.

It usually refers to the cost of entry, not the physical ticket.

In this sentence, it functions as a noun.

More specifically, it is a substantivized adjective: a word that historically looks like an adjective, but is used as a noun. That is why it has an adjective-like ending -é.

So even though it means a thing, it behaves grammatically in some ways like an adjective.

Because vstupné belongs to a group of Czech nouns that come from adjectives and keep adjective-style endings.

That means it is:

• neuter
• singular
• declined like an adjective

For example, in other cases you may see forms such as:

• bez vstupného = without an admission fee / without paying admission
• k vstupnému = toward the admission fee or in contexts requiring dative

So the -é ending is not random; it reflects its grammar.

Because drahé has to agree with vstupné.

Since vstupné is:

• neuter
• singular
• nominative

the adjective must also be:

• neuter
• singular
• nominative

So:

• masculine singular: drahý
• feminine singular: drahá
• neuter singular: drahé

That is why Vstupné je drahé is correct.

It is in the nominative singular.

In this sentence, vstupné is the subject, and subjects are normally in the nominative case.

The adjective drahé is also nominative singular neuter because it agrees with the subject after je.

Je is the 3rd person singular present tense of být, which means to be.

So:

• je = is

The structure is very similar to English:

• Vstupné = admission
• je = is
• drahé = expensive

So literally: Admission is expensive.

Normally, no in standard Czech.

In ordinary full sentences, Czech usually keeps the present-tense form of být:

• Vstupné je drahé.

Leaving it out would sound incomplete in normal speech. You might occasionally see omission in headlines, notes, or very informal styles, but for a learner, it is best to use je.

Because drahé is an adjective, while draho is an adverb.

Here you are describing the noun vstupné, so you need the adjective:

• Vstupné je drahé. = Admission is expensive.

The adverb draho is used with verbs, for example:

• To jsem draho zaplatil. = I paid dearly for that.

So:

• drahé = expensive
• draho = expensively / dearly

Because Czech does not have articles like English a and the.

So Vstupné je drahé could mean:

• Admission is expensive
• The admission fee is expensive

Which one sounds best depends on context.

Czech usually expresses definiteness through context, not through articles.

Yes, Czech word order is flexible, but the neutral, most natural order here is:

• Vstupné je drahé.

Other orders are possible, but they change the emphasis. For example:

• Drahé je vstupné. = puts emphasis on expensive
• Je vstupné drahé? = Is admission expensive?

So word order in Czech is not just about grammar; it is also about focus and emphasis.

A few helpful points:

• Stress is on the first syllable of each word.
• je is pronounced like ye in yes.
• Both é vowels are long.

So the stress pattern is:

• VSTUP-né je DRA-hé

Also, vstupné begins with a consonant cluster vst-, which may feel unusual to English speakers, but it is normal in Czech.

This is a very useful distinction:

• vstupné = admission fee / price of entry
• vstupenka = ticket

So:

• Vstupné je drahé. = The admission fee is expensive.
• Vstupenka je drahá. = The ticket is expensive.

In real life, the ideas are related, but they are not exactly the same word.