A nyugati parkolási övezet nagy.

A is the definite article, meaning the.

Hungarian has two forms:

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

Since nyugati starts with ny, which is a consonant sound, the correct form is a:

• a nyugati övezet
• but az ipari övezet

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

So:

• A nyugati parkolási övezet nagy. = The western parking zone is big.

Literally, it looks more like:

• The western parking zone big.

This is completely normal in Hungarian.

But the verb appears in other cases, for example:

• Nagy vagyok. = I am big.
• Nagy volt. = It was big.

Nyugati means western or of the west.

It comes from:

• nyugat = west
• -i = a very common suffix that turns a noun into an adjective meaning related to / located in / from

So:

• nyugat = west
• nyugati = western

This -i suffix is extremely common:

• Budapest → budapesti = from Budapest / Budapest-related
• iskola → iskolai = school / school-related

Parkolási means parking-related.

It is built in stages:

• parkol = to park
• parkolás = parking (the act of parking)
• parkolási = relating to parking

So:

• parkolási övezet = parking zone
• parkolási díj = parking fee
• parkolási szabályok = parking rules

This is a very common pattern in Hungarian formal or administrative language.

Övezet means zone, area, or district, especially in an official or administrative sense.

It is often used for defined regions or categories, for example:

• ipari övezet = industrial zone
• lakóövezet = residential zone
• parkolási övezet = parking zone

So in this sentence, övezet is the main noun.

Because they do different jobs in the sentence.

Before the noun:

• nyugati
• parkolási

These are attributive adjectives: they describe the noun as part of the noun phrase:

• a nyugati parkolási övezet
• the western parking zone

After the noun:

• nagy

This is a predicate adjective: it tells you something about the subject:

• övezet nagy
• the zone is big

So the structure is:

• [the western parking zone] [is big]

Hungarian expresses this by putting the descriptive adjective before the noun, but the predicate adjective after the noun.

Hungarian word order is flexible, but not completely free.

This sentence is the neutral order:

• A nyugati parkolási övezet nagy.

You can move things for emphasis:

• Nagy a nyugati parkolási övezet. = The western parking zone is big / It’s the western parking zone that’s big

But inside the noun phrase, the original order is the natural one:

• nyugati parkolási övezet

Changing that internal order can sound unnatural or change the meaning.

So:

• sentence-level word order: often flexible
• word order inside a noun phrase: much less flexible

Hungarian has no grammatical gender, so adjectives do not change for masculine/feminine/neuter, because Hungarian does not have those categories.

For number:

• when an adjective comes before a noun, it usually does not take a plural ending
• when an adjective is used as the predicate, it can show plural

Compare:

• nagy övezet = big zone
• nagy övezetek = big zones

But:

• Az övezet nagy. = The zone is big.
• Az övezetek nagyok. = The zones are big.

In your sentence, the noun is singular, so nagy stays singular too.

Because parkolási is the standard way to say parking-related in formal expressions like this.

There is a difference:

• parkolás = parking
• parkolási = relating to parking
• parkoló often means parking lot or can function like parking/parked, depending on context

So:

• parkolási övezet = parking zone
• parkoló by itself often means car park / parking lot

A learner might expect parkoló övezet, but parkolási övezet is the usual official phrase.

A rough pronunciation guide is:

• A → short aw
• nyugati → NYOO-gaw-tee
• parkolási → PAR-ko-laa-shee
• övezet → UR-ve-zet or Ö-ve-zet with a rounded vowel
• nagy → roughly nody with a very soft dy sound at the end

A few useful pronunciation points:

• ny sounds like Spanish ñ or the ny in canyon
• s in Hungarian sounds like English sh
• ö is a rounded front vowel, similar to German ö
• stress is almost always on the first syllable of each word

So the stress pattern is:

• A NYUgati PARkolási Övezet NAGY