A csendes zóna nyugodt.

A means the.

Hungarian has two forms of the definite article:

• a before a consonant sound
• az before a vowel sound

So:

• a zóna = the zone
• az alma = the apple

It does not show gender. Hungarian nouns do not have grammatical gender like he/she/it or le/la type systems.

In Hungarian, the verb to be is often left out in the present tense, third person when the predicate is a noun or an adjective.

So:

• A csendes zóna nyugodt. = The quiet zone is calm.

Literally, Hungarian says something like The quiet zone calm.

But in other persons or tenses, the verb appears:

• Nyugodt vagyok. = I am calm.
• Nyugodt volt. = He/She/It was calm.

So the missing is here is completely normal.

Because they are doing two different jobs.

• csendes zóna = quiet zone
  Here csendes is an adjective directly describing the noun. This is called an attributive adjective.

• A csendes zóna nyugodt. = The quiet zone is calm.
  Here nyugodt is the main statement about the subject. This is a predicate adjective.

So:

• adjective before the noun: part of the noun phrase
• adjective after the noun: part of the predicate

This is a very common pattern in Hungarian.

Not exactly.

• csendes = quiet, silent, not noisy
• nyugodt = calm, peaceful, relaxed

So in this sentence:

• csendes zóna is a quiet zone — a place where noise should be kept down
• nyugodt says that the zone is calm/peaceful

They are related ideas, but not the same word.

It is in the basic dictionary form, the nominative (unmarked form).

In this sentence, a csendes zóna is the subject:

• a csendes zóna = the quiet zone

Hungarian often leaves the subject in its basic form unless another ending is needed.

Also, the adjective csendes does not change form here. Hungarian adjectives do not agree with nouns the way they do in many Indo-European languages.

No. Hungarian does not have grammatical gender.

So zóna is not grammatically masculine, feminine, or neuter. The article a also does not change for gender.

That is why Hungarian learners do not need to memorize nouns as masculine/feminine/neuter.

The accent marks vowel length.

• o = short vowel
• ó = long vowel

So zóna has a long ó sound.

In Hungarian, vowel length is important and can change meaning, so the accent is not optional.

Also, stress in Hungarian normally falls on the first syllable of the word:

• ZÓ-na
• CSEN-des
• NYU-godt

In this sentence, two useful letter combinations are:

• cs in csendes = like ch in church
• ny in nyugodt = roughly like ny in canyon or Spanish ñ

So approximately:

• csendes ≈ CHEN-desh
• nyugodt ≈ NYU-got (very approximate)

A fuller rough pronunciation of the whole sentence is:

• ah CHEN-desh ZOH-na NYU-got

That is only an approximation for English speakers, but it helps at first.

Yes, Hungarian word order is flexible, but different orders change the emphasis.

A csendes zóna nyugodt. is a neutral sentence:
The quiet zone is calm.

If you say:

• Nyugodt a csendes zóna.

the meaning is still similar, but now nyugodt is more emphasized, something like:

• The quiet zone is calm
• It is calm, the quiet zone

So the original sentence is a natural neutral order for basic description.