Turistická značka je červená.

Because they both agree with značka, which is a feminine singular noun in the nominative case.

In Czech, adjectives must match the noun they describe in:

• gender
• number
• case

So:

• značka = feminine singular
• turistická = feminine singular form of turistický
• červená = feminine singular form of červený

That is why you get Turistická značka je červená.

Je means is.

It is the 3rd person singular present tense of být = to be.

So:

• já jsem = I am
• ty jsi = you are
• on / ona / ono je = he / she / it is

In this sentence, je links the subject Turistická značka with the description červená.

Usually, no in a normal sentence like this.

Czech sometimes omits forms of to be in very informal speech, notes, labels, or headlines, but in standard full sentences you normally keep je.

So the natural standard sentence is:

• Turistická značka je červená.

Without je, it would sound incomplete or very non-standard in most ordinary contexts.

Značka is a very flexible word. Depending on context, it can mean:

• mark
• sign
• symbol
• brand
• marker

In this sentence, it most likely means a trail marker or hiking mark, not a commercial brand.

So although you already know the meaning, it is useful to remember that značka is broader than one single English word.

Because here it describes the noun značka.

• turista = tourist (a person)
• turistický / turistická / turistické = tourist, tourist-related, hiking-related

So:

• turistická značka = a tourist/hiking marker

English often uses nouns as modifiers, but Czech usually uses an adjective here.

The most natural word order here is:

• Turistická značka je červená.

That is a straightforward subject + verb + description pattern.

Czech word order is more flexible than English, but changing it usually changes the emphasis.

For example:

• Červená je turistická značka. sounds unusual in ordinary speech and gives a very different emphasis.
• Turistická značka je červená. is the neutral, normal version.

So yes, Czech word order is flexible, but this sentence is already in the most natural order for a beginner to use.

Because červená must agree with značka, which is feminine.

Compare:

• červený = masculine singular
• červená = feminine singular
• červené = neuter singular or some plural forms

Since značka is feminine, the correct form is:

• Turistická značka je červená.

If the noun were masculine, you might get červený instead.

A simple learner-friendly pronunciation guide is:

• TU-ris-ti-tská ZNA-chka ye CHER-ve-ná

A few useful points:

• Czech stress is usually on the first syllable of each word.
• č sounds like ch in church.
• je sounds roughly like yeh.
• The final á is a long vowel.

So:

• turistická → stress on TU
• značka → stress on ZNA
• červená → stress on ČER

No. Czech does not have articles like English a and the.

So Turistická značka je červená could mean:

• The tourist marker is red
• A tourist marker is red

Which one is intended depends on the context.

That is very normal in Czech, and learners have to get used to understanding definiteness from the situation rather than from an article.

The plural would be:

• Turistické značky jsou červené.

Changes:

• turistická → turistické
• značka → značky
• je → jsou
• červená → červené

So this means Tourist markers are red.

This is a good example of how Czech changes several words at once to match number and agreement.