Cena roste každý rok.

• Cena = price
• roste = grows / rises / increases
• každý rok = every year

So grammatically:

• Cena is the subject.
• roste is the verb.
• každý rok is a time expression meaning every year.

Roste is the correct 3rd person singular present-tense form of the verb růst (to grow / to rise).

Since cena is a singular noun and means the price, Czech uses the he/she/it form of the verb:

• já rostu = I grow
• ty rosteš = you grow
• on / ona / ono roste = he / she / it grows

Here, cena is grammatically feminine singular, so it takes roste.

Because cena is the subject of the sentence, it is in the nominative case.

The basic dictionary form is:

• cena = price

In this sentence, the price is the thing that is rising, so nominative is exactly what you expect.

In Czech, many expressions of repeated time use the accusative without a preposition.

So:

• každý rok = every year
• každý den = every day
• každý týden = every week

Here:

• každý is masculine inanimate accusative singular
• rok has the same form as nominative/accusative singular

That is why you see každý rok.

You may also encounter každého roku, which is possible and a bit more formal/literary, but každý rok is the most common everyday form.

Czech has no articles like English a or the.

So cena can mean:

• a price
• the price
• sometimes just price in a general sense

You understand which one is meant from context. In this sentence, English usually translates it naturally as The price rises every year or Prices go up every year, depending on context.

Yes. The verb růst literally means to grow, but it is also commonly used for things that increase or go up, such as:

• cena roste = the price is rising
• počet roste = the number is increasing
• napětí roste = the tension is rising

So for prices, roste is completely natural.

Yes. Cena se zvyšuje also means The price is increasing.

There is a slight nuance:

• Cena roste = the price is going up / rising
• Cena se zvyšuje = the price is increasing / being increased

Both are normal, but roste often sounds simpler and more direct.

Because růst is not a reflexive verb.

Some Czech verbs need se, but růst does not:

• cena roste = the price rises

Compare:

• zvyšovat se = to increase
• cena se zvyšuje = the price is increasing

So se depends on the verb, not on the meaning alone.

The neutral word order is:

• Cena roste každý rok.

But Czech word order is fairly flexible, and changes can shift emphasis:

• Každý rok cena roste. = emphasis on every year
• Cena každý rok roste. = also possible, slightly different rhythm

The most neutral, textbook-style version is Cena roste každý rok.

A simple approximation:

• Cena ≈ TSEH-nah
• roste ≈ ROS-teh
• každý ≈ KAZH-dee
• rok ≈ rok

A few pronunciation notes:

• c in Czech is always like ts
• š would be sh, but here you have ž in každý, which sounds like the s in measure
• ý is a long ee sound
• Stress in Czech is normally on the first syllable of each word:
  • CE-na
  • ROS-te
  • KAŽ-dý
  • ROK

Yes, often it can.

In many contexts, cena is translated as:

• price
• cost

But the most direct basic meaning is price.

For example:

• Cena je vysoká. = The price is high.
• Celková cena. = Total cost / total price.

The best English translation depends on context.

Yes, it is natural and correct.

It sounds like a general statement, for example about inflation or a product that gets more expensive over time:

• Cena roste každý rok. = The price rises every year.

In everyday English, you might also translate it more naturally as:

• The price goes up every year.
• Prices rise every year.

But the Czech sentence itself is perfectly normal.