La livraison arrive aujourd’hui.

La means you are talking about a specific delivery, not just any delivery.

• la livraison = the delivery
• une livraison = a delivery

In a real situation, this usually means the speaker and listener both know which delivery is being discussed.

Because the subject is la livraison, which is third person singular.

French arriver in the present tense goes like this:

• j’arrive
• tu arrives
• il / elle / on arrive
• nous arrivons
• vous arrivez
• ils / elles arrivent

Since la livraison is singular, French uses the same form as elle:

• La livraison arrive.

Even though tu arrives also sounds similar, the spelling is different because the subject is different.

Yes. French often uses the present tense for something that is going to happen soon, especially when there is a time expression like aujourd’hui.

So La livraison arrive aujourd’hui is literally in the present tense, but in context it can mean something like:

• the delivery arrives today
• the delivery is arriving today
• the delivery will arrive today

This is very natural in both French and English for planned or expected events.

Yes. That is also correct.

• La livraison arrive aujourd’hui = simple, natural, often used for a scheduled or expected event
• La livraison va arriver aujourd’hui = is going to arrive today, a bit more explicit about the future

Both are common. The version with the simple present is very normal in French.

Livraison means delivery, not the package itself.

That distinction can matter:

• la livraison = the act/process of delivering, or the delivery as an event/service
• le colis = the parcel/package
• le paquet = the package

So if you mean the package arrives today, French might also say:

• Le colis arrive aujourd’hui.

But La livraison arrive aujourd’hui is understandable if the focus is on the delivery.

It is just the standard spelling of the word aujourd’hui, which means today.

Historically, it comes from older elements meaning something like on the day of today, but for a learner the important thing is:

• treat aujourd’hui as one fixed word
• always write it with the apostrophe

So just memorize it as the normal spelling.

A common pronunciation is approximately:

• oh-zhoor-dwee

More carefully in French IPA, it is often written:

• /o.ʒuʁ.dɥi/

A few helpful points:

• jour sounds like zhoor, with the French r
• d’hui is not pronounced like separate English words; it flows together
• the final sound is like dwee

A rough English-friendly pronunciation is:

• lah lee-vray-zon ah-reev oh-zhoor-dwee

A more accurate French pronunciation is approximately:

• /la li.vʁɛ.zɔ̃ a.ʁiv o.ʒuʁ.dɥi/

A few things to notice:

• la = lah
• livraison ends in a nasal sound, so the final n is not fully pronounced like an English n
• arrive sounds like ah-reev
• aujourd’hui flows as one word

Because normal French word order is usually:

• subject + verb + other information

So:

• La livraison = subject
• arrive = verb
• aujourd’hui = time expression

This is the same basic order as in English:

• The delivery arrives today.

Yes. French time expressions are often flexible.

These are all possible:

• La livraison arrive aujourd’hui.
• Aujourd’hui, la livraison arrive.
• La livraison aujourd’hui arrive is not natural.

The most neutral version here is:

• La livraison arrive aujourd’hui.

Putting Aujourd’hui at the beginning can add emphasis to today.

Because French does not usually build the present progressive the same way English does.

English often says:

• The delivery is arriving today.

French usually just uses the simple present:

• La livraison arrive aujourd’hui.

French can express in the process of with forms like être en train de, but that would sound unnatural here:

• La livraison est en train d’arriver = the delivery is in the middle of arriving right now

That is a different idea. For a normal future-today statement, arrive is enough.

Yes. Arriver is one of the verbs that normally takes être in the passé composé.

For example:

• La livraison est arrivée. = the delivery arrived / has arrived

Because livraison is feminine singular, arrivée adds an -e in writing.

That does not affect the sentence you were given, but learners often wonder because arriver is a common être verb.

Yes. French present tense is often broader than English.

Depending on context, La livraison arrive aujourd’hui can correspond to English ideas like:

• The delivery arrives today.
• The delivery is arriving today.
• The delivery will arrive today.

The time word aujourd’hui helps show that the event is expected today, so French does not need to choose between those English forms as strictly.