A máz kék.

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

A few useful points:

• a is used before a consonant: a máz
• az is used before a vowel: az alma
• At the start of a sentence, it is capitalized: A

So A máz means the glaze (or the icing/coating, depending on context).

Hungarian also has an indefinite article, egy, which means a/an.

In Hungarian, the verb to be is often omitted in the present tense, 3rd person when the predicate is a noun or adjective.

So:

• A máz kék. = The glaze is blue.

This is completely normal Hungarian, not an incomplete sentence.

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

• Kék vagyok. = I am blue.
• Kék vagy. = You are blue.
• A máz kék volt. = The glaze was blue.
• A máz az asztalon van. = The glaze is on the table.

So the missing is is a grammar feature, not an omission.

Because A máz kék. is a full sentence, and kék is the predicate adjective: it tells you what the glaze is like.

Compare these:

• A máz kék. = The glaze is blue.
• A kék máz = the blue glaze

So:

• noun + adjective here gives you a sentence
• adjective + noun gives you a noun phrase

This is one of the most useful distinctions to notice in Hungarian.

Yes. Kék a máz is also possible.

Both sentences mean the same basic thing, but the emphasis is different:

• A máz kék. = neutral statement
• Kék a máz. = puts more focus on blue

So if you are contrasting colors, Kék a máz may sound more natural, for example if someone expected it to be red.

Hungarian word order is often connected to focus and emphasis, not just grammar.

The accents are very important in Hungarian. They are not just stress marks. They are part of the spelling and show different vowels.

In this sentence:

• á in máz is a long vowel
• é in kék is also a long vowel

Approximate pronunciation:

• máz ≈ maahz
• kék ≈ a long kehk, with a clear long é

More precisely:

• máz = /maːz/
• kék = /keːk/

Also, Hungarian normally stresses the first syllable of the word. Here both content words are only one syllable long, so that is simple.

It does not change for gender, because Hungarian has no grammatical gender like he/she or masculine/feminine adjective agreement.

So kék stays the same regardless of whether the noun is something that would be masculine, feminine, or neuter in other languages.

For number, Hungarian behaves differently depending on use:

• Attributive adjective:
  a kék mázak = the blue glazes
  Here kék does not take a plural ending.

• Predicate adjective:
  A mázak kékek. = The glazes are blue.
  Here kék does take the plural ending -ek.

In your sentence, the subject is singular, so just kék is correct.

To make it negative, add nem before the adjective:

• A máz nem kék. = The glaze is not blue.

To make it a yes/no question, Hungarian often just uses intonation:

• A máz kék? = Is the glaze blue?

You may also hear:

• Kék a máz?

That version can sound slightly more focused on the color itself.

Máz most commonly means a kind of glaze, coating, or icing, depending on context.

For example, it can refer to:

• the glaze on pottery or ceramics
• a shiny surface coating
• icing/frosting in food-related contexts

So the exact English word depends on what kind of object is being talked about.

There is also a more colloquial meaning of máz meaning something like luck, but that is not what is happening in A máz kék.