A váróterem nagy.

In Hungarian, the verb to be is usually left out in the present tense when the subject is third person singular or plural.

So:

• A váróterem nagy. = The waiting room is big.
• literally: The waiting room big.

This is completely normal in Hungarian.

But the verb does appear in other persons, for example:

• Nagy vagyok. = I am big.
• Nagy vagy. = You are big.
• Nagyok vagyunk. = We are big.

So the missing is is not a mistake; it is a basic rule of Hungarian grammar.

A is the definite article, so it means the.

• a váróterem = the waiting room

Hungarian has two forms of the definite article:

• a
• az

Which one you use depends on the following sound:

• a váróterem because váróterem begins with a consonant
• az ablak = the window because ablak begins with a vowel

So here A simply means the.

Because in this sentence nagy is not directly describing the noun inside a noun phrase; it is the predicate adjective.

Compare:

• A váróterem nagy. = The waiting room is big.
• a nagy váróterem = the big waiting room

So:

• before the noun: attributive adjective, part of the noun phrase
• after the noun: predicate adjective, equivalent to English is big

That is why nagy comes after váróterem here.

Yes. Nagy a váróterem is also correct.

Hungarian word order is flexible, and changing the order often changes the focus or emphasis, not the core meaning.

• A váróterem nagy. = a neutral statement
• Nagy a váróterem. = more like The waiting room is big / It’s the waiting room that is big / emphasis on big

So both are grammatical, but they do not sound exactly the same in terms of emphasis.

A rough English-friendly guide:

• váróterem ≈ vaa-roe-teh-rem
• nagy ≈ something like nody or nawdy, but not exactly

A few important points:

• á is a long vowel, longer than a
• ó is also long
• gy is a single Hungarian sound, somewhat similar to the dy sound in British duke for some speakers, but softer

Also, Hungarian stress is usually on the first syllable:

• VÁ-ró-te-rem
• NAGY

The accent marks show that the vowels are different sounds, not just stressed versions of the same letter.

In Hungarian, vowel length matters. So:

• a and á are different vowels
• o and ó are different vowels

In váróterem:

• á is long
• ó is long

These marks are a normal and important part of spelling. You should not ignore them when writing Hungarian.

Yes, váróterem is one word.

It is a compound noun:

• váró = waiting
• terem = room, hall

So together:

• váróterem = waiting room

Hungarian often forms compound nouns this way, and they are usually written as a single word.

No. Hungarian nouns do not have grammatical gender.

So váróterem is not masculine, feminine, or neuter. It is just a noun.

This means:

• the article does not change for gender
• adjectives do not change for gender
• you do not need to memorize nouns as masculine/feminine/neuter the way you do in some other European languages

This is often good news for English speakers.

Usually, no, not in normal standard Hungarian for this meaning.

If you mean the waiting room is big, you normally say:

• A váróterem nagy.

Without the article, váróterem would sound unnatural here.

Hungarian uses articles differently from English in some situations, but with a specific noun like this, the definite article is normally expected.

In this sentence, nagy stays just nagy.

Hungarian adjectives do not agree with nouns in gender, and in basic singular use they do not change the way adjectives do in many Indo-European languages.

So:

• nagy váróterem = big waiting room
• A váróterem nagy. = The waiting room is big.

The adjective itself stays the same.

That is another feature that makes Hungarian simpler in some ways for English speakers.