Az orvos megjelenik a találkozón.

Hungarian has two forms of the definite article:

• a before a consonant sound
• az before a vowel sound

Since orvos begins with o, you use az.

So:

• az orvos = the doctor
• a találkozó = the meeting / the appointment

No. Orvos is gender-neutral. Hungarian nouns do not normally show grammatical gender, so orvos can mean doctor regardless of whether the person is male or female.

If you need to specify sex, Hungarian does that separately, for example with extra words, not through the noun itself.

Here megjelenik means something like:

• appears
• shows up
• turns up
• attends (depending on context)

With a person and an event like a meeting, it usually means the person shows up / is present there, not that they magically materialize.

In other contexts, megjelenik can also mean appears in a more general sense, or even is published / comes out.

Meg- is a verbal prefix. In many verbs, it gives the action a more complete, bounded, or event-like meaning.

So:

• jelenik is related to appearing / becoming visible
• megjelenik is the usual verb for to appear / show up

In this sentence, megjelenik is the natural form. English speakers often want to translate piece by piece, but with many Hungarian verbs, the prefix is simply part of the normal verb you learn.

In a neutral sentence, Hungarian verbal prefixes usually stay in front of the verb, so megjelenik is the normal order.

The prefix can move after the verb in certain situations, especially with:

• negation: nem jelenik meg
• focus/emphasis: A találkozón jelenik meg az orvos

So in your sentence, megjelenik is the ordinary neutral form.

Because találkozón is in the superessive case, which often corresponds to English on or at.

So:

• találkozó = meeting / appointment
• találkozón = at the meeting / at the appointment

Hungarian often uses this case with events and occasions, where English would use at.

Because the meeting is being treated as definite: the meeting / the appointment.

Hungarian keeps the article even when the noun has a case ending. So you get:

• a találkozó = the meeting
• a találkozón = at the meeting

The case ending goes on the noun, not on the article.

Because Hungarian does not always match English prepositions one-for-one.

For events such as:

• meetings
• classes
• concerts
• weddings

Hungarian often uses the superessive case, not the inessive.

So:

• a találkozón = at the meeting
• not usually a találkozóban

Even though English says at, Hungarian uses a case form that literally looks more like on in other contexts. This is just normal Hungarian usage.

It can mean either, depending on context.

Találkozó can refer to:

• a meeting
• an appointment
• an arranged get-together
• sometimes even a date

So the best translation depends on the situation. If the doctor is going to a scheduled patient visit or professional meeting, context decides which English word sounds best.

Grammatically, it is present tense, third person singular:

• megjelenik = he/she appears, the doctor appears / shows up

But Hungarian often uses the present tense for the near future or for scheduled events, just like English sometimes does.

So depending on context, it could mean either:

• The doctor shows up at the meeting
• The doctor will show up at the meeting

If there is no time word, the form itself is simply present.

This is a normal, neutral Hungarian sentence.

A simple way to read it is:

• Az orvos = the topic, what we are talking about
• megjelenik a találkozón = what is being said about the doctor

Hungarian word order is flexible, but changes in order usually affect emphasis or focus, not the basic core meaning.

For example:

• Az orvos megjelenik a találkozón. = neutral
• A találkozón jelenik meg az orvos. = emphasis on at the meeting
• Az orvos nem jelenik meg a találkozón. = does not show up, with the prefix moved after the verb because of negation

So the sentence you have is the straightforward, unmarked version.