A repedés hosszú.

A is the definite article in Hungarian, so it usually means the.

So A repedés hosszú. means The crack is long.

Hungarian has two forms of the definite article:

• a
• az

Which one you use depends on the sound that follows.

Hungarian uses:

• a before a word beginning with a consonant
• az before a word beginning with a vowel

Since repedés begins with r, which is a consonant, the correct form is a repedés.

Examples:

• a ház = the house
• az alma = the apple

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

So English The crack is long becomes simply:

• A repedés hosszú.

You do not normally say A repedés hosszú van. That would be incorrect here.

Compare:

• Én hosszú vagyok = I am tall/long (depending on context, though this is not a very natural sentence)
• Te boldog vagy = You are happy
• A repedés hosszú = The crack is long

In third person present, the copula is usually omitted.

In this sentence, hosszú is the predicate adjective, not an adjective directly attached to the noun.

So:

• A repedés hosszú. = The crack is long.

But if you want to say the long crack, where long directly describes the noun inside the noun phrase, Hungarian puts the adjective before the noun:

• a hosszú repedés = the long crack

So the position changes depending on the structure:

• a hosszú repedés = the long crack
• a repedés hosszú = the crack is long

No. Hungarian adjectives do not agree in gender, because Hungarian has no grammatical gender like he/she distinctions in nouns.

They also do not change the way adjectives do in many Indo-European languages when used predicatively.

So:

• A repedés hosszú. = The crack is long.
• A repedések hosszúak. = The cracks are long.

Notice something important here:

• In attributive position (before the noun), the adjective usually stays unchanged:
  a hosszú repedések = the long cracks
• In predicative position, the adjective can take a plural marker:
  A repedések hosszúak. = The cracks are long.

So in your sentence, singular repedés goes with singular hosszú.

In repedés, the ending -és is part of the noun itself. It often forms a noun related to an action or result.

Here the base is related to the verb reped = to crack / to split

So:

• reped = it cracks / splits
• repedés = crack, cracking, or a crack/split depending on context

This is a useful pattern in Hungarian, although meanings are not always perfectly predictable, so it is best to learn each word as vocabulary.

A rough pronunciation guide:

• repedés ≈ reh-peh-daysh
• hosszú ≈ hos-soo

A few important points:

• e is usually like e in bed, but often a bit cleaner
• é is a long vowel, roughly like ay in say
• sz is pronounced like English s
• s by itself is pronounced like English sh
• ú is a long u sound

So:

• repedés has stress on the first syllable: RE-pe-dés
• hosszú also has stress on the first syllable: HOS-szú

Hungarian always stresses the first syllable of the word.

The accent marks in Hungarian are very important. They usually show vowel length, and sometimes vowel quality as well.

In your sentence:

• é is a long vowel
• ú is a long vowel

So:

• e and é are different vowels
• u and ú are different vowels

These are not optional spelling marks. They can change pronunciation and sometimes meaning.

Yes, Hungarian word order is more flexible than English, but changes in word order often affect focus or emphasis.

The neutral sentence is:

• A repedés hosszú.

You may also encounter different orders in special contexts, but they are not always neutral. For a beginner, it is best to learn:

• subject + predicate adjective

So this sentence is a good standard pattern.

Yes, it is a complete grammatical sentence.

It is structurally very natural Hungarian:

• A repedés = subject
• hosszú = predicate adjective

Whether it is natural in real-life conversation depends on context, but grammatically it is perfectly normal. You might say it when describing damage in a wall, windshield, screen, or piece of material.

Yes. Ez a repedés hosszú. means This crack is long.

Adding ez gives more specificity:

• A repedés hosszú. = The crack is long.
• Ez a repedés hosszú. = This crack is long.

That is often useful if you are pointing at a particular crack.

You would make the noun plural and also use the plural form of the predicate adjective:

• A repedések hosszúak. = The cracks are long.

Breakdown:

• repedés = crack
• repedések = cracks
• hosszú = long
• hosszúak = long (plural predicate form)

This is a very useful pattern to remember for adjective predicates in Hungarian.