O seçkin bir üniversiteden mezun olmaktan gurur duyuyor.

O is the third-person singular pronoun in Turkish. It can mean he, she, or it, depending on context.

In this sentence, it refers to a person, so the natural English meaning is he or she. Turkish does not normally mark gender in pronouns.

Seçkin is an adjective meaning distinguished, elite, prestigious, or select.

It comes before the noun, just like in English:

• seçkin bir üniversite = a prestigious university

Bir usually means one, but it also works like the English indefinite article a/an.

So:

• seçkin bir üniversite = a prestigious university

Here it shows that the university is singular and indefinite, not specifically identified.

The ending -den is the ablative case, which often means from.

So:

• üniversite = university
• üniversiteden = from the university / from a university

This is especially important because Turkish uses mezun olmak with the ablative:

• bir üniversiteden mezun olmak = to graduate from a university

Turkish case endings change form depending on the sound before them.

The ablative has four common forms:

• -dan
• -den
• -tan
• -ten

In üniversiteden, the word ends in a vowel sound, so the voiced form -den is used.

So:

• üniversite + den → üniversiteden

Mezun olmak is the normal Turkish expression for to graduate.

Literally, it is closer to something like to become a graduate, because:

• mezun = graduate / graduated
• olmak = to become / to be

So Turkish does not use a single verb here in the same way English uses graduate. Instead, it uses this set phrase:

• okuldan mezun olmak = to graduate from school
• üniversiteden mezun olmak = to graduate from university

Because the sentence is talking about the act of graduating as the thing the person feels proud about.

Here is the structure:

• mezun olmak = to graduate
• mezun olmaktan = from graduating / of graduating

The ending -mak makes the verb into a verbal noun or infinitive, and then -tan is added.

This kind of structure is common after gurur duymak:

• ... yapmaktan gurur duymak = to be proud of doing ...
• mezun olmaktan gurur duymak = to be proud of graduating

Gurur duymak is an idiomatic expression meaning to be proud or to feel pride.

Breakdown:

• gurur = pride
• duymak = to feel, sense, hear

In this phrase, duymak means to feel.

So:

• gurur duyuyor = is proud / feels proud

Duyuyor is the present continuous form of duymak:

• duy- = verb stem
• -yor = present continuous marker

So literally it is something like is feeling.

In Turkish, -yor is often used in places where English might use either:

• is feeling
• feels
• is proud

So gurur duyuyor is a natural way to say is proud here.

Turkish usually puts the main verb at the end, so the sentence follows a typical Turkish pattern.

A rough breakdown is:

• O = he/she
• seçkin bir üniversiteden = from a prestigious university
• mezun olmaktan = of graduating
• gurur duyuyor = is proud

So the order is very natural for Turkish: subject first, details in the middle, main verb last.

Yes. Very often, Turkish leaves out subject pronouns when they are already clear from context.

So this would also be natural:

• Seçkin bir üniversiteden mezun olmaktan gurur duyuyor.

That still means He/She is proud of graduating from a prestigious university, as long as the listener already knows who is being talked about.

Not necessarily. Because of bir, it sounds indefinite:

• from a prestigious university

It tells us the university is prestigious, but it does not identify which one.

If the speaker wanted to refer to a specific known university, they might name it directly or use a more specific noun phrase.

Yes. Turkish has more than one way to express this kind of idea.

For example, another possible sentence is:

• Seçkin bir üniversiteden mezun olduğu için gurur duyuyor.

That is closer to He/She feels proud because he/she graduated from a prestigious university.

The original sentence, with mezun olmaktan, focuses more directly on being proud of graduating. It is a very natural structure.