النت في الجامعة سريع.

A common Egyptian pronunciation is:

en-net fi l-gamʿa sariiʿ

A few notes:

• النت → en-net
  The word نت comes from English net / internet, and with الـ it is often pronounced en-net because the l sound of the article assimilates before n.
• في → fi
• الجامعة → el-gamʿa or l-gamʿa in connected speech
  In Egyptian Arabic, ج is usually pronounced like g in go.
• سريع → sariiʿ
  The last sound ع is a deep Arabic consonant that English does not have.

So the whole sentence sounds roughly like:

en-net fi l-gamʿa sariiʿ

Because in Arabic, including Egyptian Arabic, the verb to be is usually omitted in the present tense.

So instead of saying:

• The internet is fast

Arabic simply says:

• النت سريع
• literally: the internet fast

Your sentence adds a location:

• النت في الجامعة سريع
• literally: the internet in the university fast

This is completely normal Arabic structure.

في الجامعة means in the university or at the university.

It tells you where the internet is fast.

So the structure is basically:

• النت = the internet
• في الجامعة = at the university
• سريع = fast

Together: The internet at the university is fast.

In English, location often comes at the end, but in Arabic it can appear before the adjective like this.

Because سريع is the predicate adjective: it tells you the condition or quality of النت.

The sentence is built like this:

• النت = topic / subject
• في الجامعة = location
• سريع = comment about the subject

So Arabic is saying something like:

• As for the internet at the university, it is fast.

Putting سريع at the end is very natural here.

Because النت is treated as masculine singular, so the adjective must match it.

• masculine singular: سريع
• feminine singular: سريعة

Since النت is masculine, the correct form is:

• النت سريع

If the noun were feminine, you would use سريعة.

Because here سريع is not directly describing a noun inside a noun phrase like the fast internet.
Instead, it is the predicate of the sentence: the internet is fast.

Compare:

• النت السريع = the fast internet
  Here السريع is a normal adjective modifying the noun directly, so it takes الـ.
• النت سريع = the internet is fast
  Here سريع is the predicate, so it usually does not take الـ.

That is why your sentence uses سريع, not السريع.

Yes, you may hear that too, and it can make sense.

But the two versions can have slightly different emphasis:

• النت في الجامعة سريع
  Focuses first on the internet at the university
• النت سريع في الجامعة
  Sounds more like the internet is fast in the university

Both are understandable. The original sentence is very natural if you want في الجامعة to identify which internet connection you are talking about.

النت is a very common Egyptian Arabic way to say the internet.

It comes from English net, and in everyday speech Egyptians often say:

• النت = the internet

So this is normal colloquial vocabulary. In more formal Arabic, you might see:

• الإنترنت

But in everyday Egyptian speech, النت is extremely common.

Because in Egyptian Arabic, the letter ج is usually pronounced as g like in go, not like j as in many other varieties of Arabic.

So:

• جامعة in Egyptian Arabic → gamʿa
• not usually jamia in Egyptian pronunciation

This is one of the most noticeable features of Egyptian Arabic.

It can mean either, depending on context.

In English, we often say:

• at the university

But Arabic commonly uses في for places where English might use either in or at.

So في الجامعة can naturally be understood as:

• in the university
• at the university

In this sentence, at the university is often the smoother English translation.

It looks mostly understandable in both, but it feels more natural as colloquial Egyptian-style wording, especially because of النت.

Why?

• النت is a very everyday spoken form
• In Modern Standard Arabic, people would more often use الإنترنت
• Egyptian Arabic also commonly omits anything formal and keeps the sentence short and direct

So this sentence is well suited to an Egyptian Arabic learner.

No. In Egyptian Arabic, you do not use the case endings that learners may see in formal Arabic grammar.

So you simply say:

• النت في الجامعة سريع

without adding endings like -u, -a, or -i at the end of words.

That is one reason spoken Egyptian Arabic often feels simpler than fully formal Arabic.