Ez egy regionális központ.

In Hungarian, the verb van (is) is usually left out in the present tense, third person when the predicate is a noun or an adjective.

So Hungarian says:

• Ez egy regionális központ.
• literally: This a regional center.
• natural English: This is a regional center.

You do use the verb in other situations, for example:

• Ez egy regionális központ volt. = This was a regional center.
• Ez egy regionális központ lesz. = This will be a regional center.

And with location/existence, van does appear:

• A központ itt van. = The center is here.

Ez means this.

In this sentence, it is the subject: this is a regional center.

Depending on context, English might translate it as this or sometimes more naturally as it, but the basic Hungarian word is still ez.

A useful extra point:

• ez by itself = this
• ez a központ = this center

So in your sentence, ez stands alone as a pronoun, not directly before a noun.

Yes, egy can mean both:

• one
• a / an

Here it means the indefinite article a:

• egy regionális központ = a regional center

If you stress it strongly, it can mean the number one. But in a normal sentence like this, learners should read it as a/an.

In Hungarian, the article goes once, before the whole noun phrase.

So:

• egy regionális központ = a regional center

Not:

• egy a regionális központ
• egy regionális egy központ

This works much like English: you say a regional center, not a regional a center.

The structure is:

• egy = article
• regionális = adjective
• központ = noun

Hungarian adjectives usually come before the noun they describe.

So:

• regionális központ = regional center

Also, Hungarian adjectives do not change for gender, because Hungarian has no grammatical gender like masculine/feminine/neuter.

And in this kind of basic noun phrase, the adjective also does not change just because the noun changes meaning-wise.

For example:

• regionális központ = regional center
• regionális központok = regional centers

The adjective stays regionális.

Központ is the noun meaning center.

In this sentence, it is the main noun of the predicate phrase:

• egy regionális központ = a regional center

This is a very common Hungarian noun and appears in many compounds and expressions, for example:

• városközpont = city center
• bevásárlóközpont = shopping center

Here it is in its basic dictionary form, with no extra ending attached.

A rough pronunciation guide is:

• Ez ≈ ez with e like in bet
• egy ≈ something like edgy without the final vowel; the gy is a single soft consonant
• regionális ≈ REH-ghee-oh-naa-leesh
• központ ≈ körz-pont or køz-pont, with ö pronounced with rounded lips

A few useful pronunciation points:

• Hungarian stress is normally on the first syllable of each word.
• á and ó are long vowels.
• Hungarian s sounds like English sh.
  • So the end of regionális sounds like -leesh.
• In központ, the ö is a rounded front vowel, which English does not really have.

This is the most neutral, natural word order for a simple statement.

Very roughly, it is:

• Ez = subject
• egy regionális központ = what it is

So the sentence simply identifies or classifies something.

Hungarian word order is more flexible than English, but changes in order usually add emphasis, contrast, or a special discourse effect.

For a beginner, Ez egy regionális központ. is the safest and most natural version.

This is a very important difference.

• Ez egy regionális központ. = This is a regional center.
• Ez a regionális központ. = This is the regional center.

So:

• egy = a/an = indefinite
• a = the = definite

Also notice something specifically Hungarian here:

When a demonstrative directly modifies a noun, Hungarian normally uses the article too:

• ez a központ = this center
• az a központ = that center

So Ez a regionális központ is completely normal Hungarian.

To make it negative, use nem:

• Ez nem regionális központ. = This is not a regional center.

Notice that the present-tense is is still omitted.

To put it in the past, add volt:

• Ez egy regionális központ volt. = This was a regional center.

To put it in the future, add lesz:

• Ez egy regionális központ lesz. = This will be a regional center.

So this sentence is a good example of how Hungarian often leaves out is in the present, but brings in the verb in other tenses.

You would say:

• Ezek regionális központok.

Changes:

• ez → ezek = this → these
• központ → központok = center → centers

Notice two useful things:

• The adjective stays regionális.
• There is no egy in the plural, because egy means a/an or one, and English also does not say these are a centers.

Also, just like in the singular, Hungarian still leaves out are in the present tense:

• Ezek regionális központok. = These are regional centers.