A szakember ma elérhető.

In Hungarian, the present-tense form of to be is often left out in the 3rd person when the predicate is a noun or an adjective.

So:

A szakember ma elérhető.
literally looks like: The specialist today available.

But in natural English, it means The specialist is available today.

You would not normally say A szakember ma elérhető van.

However, van is used in other situations, especially for existence or location:

• A szakember itt van. = The specialist is here.

And in other tenses, the verb appears:

• A szakember ma elérhető volt. = The specialist was available today.
• A szakember holnap elérhető lesz. = The specialist will be available tomorrow.

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

• a is used before a consonant sound
• az is used before a vowel sound

So:

• a szakember = the specialist
• az orvos = the doctor

The indefinite article is egy, meaning a/an:

• egy szakember = a specialist

In your sentence, A is capitalized simply because it is the first word of the sentence.

Szakember is a common Hungarian word meaning something like:

• specialist
• expert
• professional
• skilled person

The exact English translation depends on context.

It is made up of:

• szak = field, profession, specialty
• ember = person, human

So the idea is basically a person of a profession/specialty.

It is also gender-neutral. Hungarian does not mark grammatical gender here, so szakember can refer to a man or a woman.

Yes. Ma means today.

It is an adverb of time, and it tells you when the specialist is available.

So in:

A szakember ma elérhető.

ma adds the time frame: today.

A useful comparison:

• ma = today
• holnap = tomorrow
• tegnap = yesterday

Yes, Hungarian word order is more flexible than English word order.

This sentence is a very natural, neutral way to say it:

• A szakember = the topic, what we are talking about
• ma = today
• elérhető = available/reachable

Other word orders are possible, but they may shift the emphasis:

• Ma elérhető a szakember. = The specialist is available today / emphasis on today
• Elérhető ma a szakember? = Is the specialist available today? / more question-like, with focus on availability

So the sentence you were given is normal and natural, but not the only possible order.

Elérhető is an adjective here.

It means something like:

• available
• reachable
• contactable
• accessible

In this sentence, it works as a predicate adjective, describing the specialist.

So:

• A szakember elérhető. = The specialist is available.

It comes from the verb elér, which means to reach or to get hold of, and the suffix -ható / -hető, which often gives the meaning can be ...-ed.

So:

• elér = reach
• elérhető = reachable, can be reached

That is why elérhető can sometimes feel very close to can be reached, even if in natural English we often translate it as available.

This is because of vowel harmony, a very important feature of Hungarian.

Hungarian suffixes often change depending on the vowels in the word stem.

• words with back vowels often take -ható
• words with front vowels often take -hető

Since elér contains front vowels, the form is:

• elérhető

A different verb might take -ható instead.

So this is not random; it follows a regular pattern.

Yes, absolutely.

For a person, elérhető can mean:

• available
• reachable
• contactable

So depending on context, the sentence could suggest:

• the specialist is available today
• the specialist can be reached today
• the specialist is contactable today

If the meaning has already been given to you as available, that is a good natural translation. But it is useful to know that the Hungarian word is a bit broader than just one English word.

A few helpful points:

• Hungarian words are usually stressed on the first syllable
• sz is pronounced like English s
• Hungarian s on its own is pronounced like English sh

So:

• szakember begins with an s sound, not sh
• elérhető has a long é, and the final ő is a rounded vowel not found in standard English

A rough learner-friendly approximation:

• szakember ≈ SA-kem-ber
• elérhető ≈ E-layr-he-tő

That is only approximate, but it helps you avoid some common mistakes.

To make it negative, add nem before the adjective:

• A szakember ma nem elérhető. = The specialist is not available today.

To make it a yes/no question, Hungarian can often keep the same word order and just use question intonation in speech:

• A szakember ma elérhető? = Is the specialist available today?

You may also see other orders for emphasis, such as:

• Elérhető ma a szakember?

That still means essentially the same thing, but with a slightly different focus.