A fúrás a lakógyűlés témája.

Hungarian often leaves out is in the present tense, third person singular when the predicate is a noun or an adjective.

So:

• A fúrás a lakógyűlés témája. = The drilling is the topic of the residents’ meeting.

But in the past or future, or in other persons, a form of lenni (to be) appears:

• A fúrás a lakógyűlés témája volt. = The drilling was the topic...
• Én fáradt vagyok. = I am tired.

So the sentence is complete even though there is no visible word for is.

Both are the Hungarian definite article, meaning the.

• A fúrás = the drilling
• a lakógyűlés témája = the topic of the residents’ meeting

Hungarian uses the definite article very regularly, so it is normal to see it more than once in a sentence.

Also, a changes to az before a vowel sound:

• a ház = the house
• az iskola = the school

Because témája means its topic or the topic of it.

The ending -ja is a possessive suffix. Hungarian usually shows possession on the possessed noun, not with a separate word like English of.

So:

• téma = topic
• témája = his/her/its topic

In this sentence, a lakógyűlés témája literally works like:

• the residents’ meeting topic-its

Natural English: the topic of the residents’ meeting

Hungarian normally does not use a separate word equivalent to English of in this kind of phrase.

Instead, it uses a possessive structure:

• a lakógyűlés témája

Literally:

• the residents’ meeting
  • its topic

This is how Hungarian expresses the topic of the residents’ meeting.

A very common pattern is:

• a ház ajtaja = the door of the house
• a könyv címe = the title of the book
• a meeting topic-its type structure, not topic of meeting

So if you are looking for of, the answer is: it is built into the grammar, especially into the possessive ending on témája.

In Hungarian possessive phrases, the article normally goes before the possessor phrase, not before the possessed noun.

So:

• a lakógyűlés témája

not:

• lakógyűlés a témája

The structure is:

• [article + possessor] + [possessed noun with possessive ending]

Compare:

• a tanár könyve = the teacher’s book
• a ház teteje = the roof of the house
• a lakógyűlés témája = the topic of the residents’ meeting

This is a very standard Hungarian pattern.

In this sentence, A fúrás is the subject, and a lakógyűlés témája is the predicate noun phrase.

So the basic meaning is:

• The drilling = subject
• the topic of the residents’ meeting = what is being said about it

Yes, the word order can be changed:

• A lakógyűlés témája a fúrás.

This means essentially the same thing, but the emphasis shifts slightly. Hungarian word order is flexible and often reflects topic and focus, not just grammatical roles.

Very roughly:

• A fúrás a lakógyűlés témája.
  = We are talking about the drilling, and saying that it is the topic of the meeting.

• A lakógyűlés témája a fúrás.
  = We are talking about the meeting’s topic, and saying that it is the drilling.

Fúrás is a noun, not a finite verb.

It comes from the verb fúr, which means to drill or to bore. The ending -ás/-és often turns a verb into a noun meaning the action of....

So:

• fúr = to drill
• fúrás = drilling, the act of drilling

This pattern is very common in Hungarian:

• olvas = to read → olvasás = reading
• ír = to write → írás = writing
• fúr = to drill → fúrás = drilling

Lakógyűlés is a compound noun.

It is made from:

• lakó = resident, inhabitant
• gyűlés = meeting, assembly

So it means something like:

• residents’ meeting
• tenants’ meeting
• apartment-house meeting

The exact English translation depends on context. In everyday use, it usually refers to a meeting of the people living in a building or residential community.

They are basically in the nominative/basic form, except that témája has a possessive suffix.

• fúrás = nominative noun
• lakógyűlés = nominative noun used as the possessor
• témája = noun + possessive suffix (-ja)

There is no extra case ending here like -ban, -nak, -t, and so on.

So the sentence is structurally quite simple:

• definite noun phrase
• definite noun phrase with possession
• no overt verb in the present tense

Yes, Hungarian can also use a dative-marked possessor in some contexts, but the plain version is the most natural here:

• A fúrás a lakógyűlés témája.

A version with -nak/-nek would sound more marked or emphatic in many situations:

• A lakógyűlésnek a témája a fúrás.

This can be used, but it is not the neutral everyday choice here.

So for a learner, the important thing is:

• the normal, simple pattern is a lakógyűlés témája
• Hungarian does not need a separate word like English of to express this idea