Prețul ajunge la un milion.

Because Romanian usually adds the definite article to the end of the noun.

• preț = price / a price
• prețul = the price

So -ul is the masculine/neuter singular definite article here.
A native English speaker often expects a separate word like the, but Romanian normally attaches it:

• băiat = boy
• băiatul = the boy

So prețul ajunge la un milion means the price reaches one million, not just price reaches one million.

Here ajunge means something like reaches, gets to, or rises to.

The verb a ajunge is very common and can have several meanings depending on context, for example:

• to arrive
• to reach
• to get to
• to become in some structures

In this sentence, it means that the price reaches a certain level:

• Prețul ajunge la un milion. = The price reaches/goes up to one million.

So this is not about physically arriving somewhere, but about reaching an amount.

Because Romanian commonly uses a ajunge la when talking about reaching a level, amount, result, or point.

So:

• a ajunge la un milion = to reach one million
• literally, it is closer to to get to one million

This is a normal Romanian pattern. English often says simply reach one million, but Romanian usually needs la in this kind of structure.

Other similar examples:

• ajunge la 100 de euro = reaches 100 euros
• ajunge la o concluzie = reaches a conclusion

So la is not optional here; it is part of the usual construction.

Because before a noun, Romanian normally uses un as the masculine/neuter singular form of a/an or one.

• un milion = one million / a million

unu is used more when the number stands alone or is emphasized:

• Am unul. = I have one.
• Nu doi, ci unu. = Not two, but one.

But before a noun, you normally say:

• un băiat
• un leu
• un milion

So un milion is the correct form here.

Preț is a neuter noun.

In Romanian, neuter nouns behave:

• like masculine in the singular
• like feminine in the plural

That is why in the singular you get:

• un preț = a price
• prețul = the price

And in the plural:

• două prețuri = two prices
• prețurile = the prices

For an English speaker, the important practical point is that preț takes masculine-looking forms in the singular.

The letter ț is pronounced like ts in cats.

So:

• preț sounds roughly like prets
• prețul sounds roughly like PRE-tsul

A few pronunciation notes:

• ț = ts
• ă is a short neutral vowel, like the a in about
• j in ajunge sounds like the s in measure or the g in genre

So ajunge is roughly ah-ZHOON-jeh, and prețul is roughly PRE-tsul.

Ajunge is present tense, third person singular.

It comes from a ajunge.

Present tense forms include:

• eu ajung = I reach / I get to
• tu ajungi = you reach
• el/ea ajunge = he/she/it reaches

Since prețul is singular, the verb is also singular:

• Prețul ajunge...

Depending on context, the Romanian present can translate in different ways in English:

• The price reaches one million
• The price gets to one million
• sometimes even The price is reaching one million

But grammatically, it is the simple present form.

Yes, Romanian word order is fairly flexible, although Prețul ajunge la un milion is the most neutral order.

You might also hear:

• Ajunge prețul la un milion? = Does the price reach one million?
• La un milion ajunge prețul. = It is to one million that the price reaches.
  This sounds more marked or emphatic.

The standard, neutral structure is:

• subject + verb + prepositional phrase
• Prețul + ajunge + la un milion

So the original sentence is the best basic version for learners.

Yes, but it does not mean exactly the same thing.

• Prețul este un milion. = The price is one million.
• Prețul ajunge la un milion. = The price reaches/goes up to one million.

The difference is:

• este states the amount directly
• ajunge la suggests movement toward that amount, or that it ends up at that level

So if you want to emphasize that the price has risen or has reached that point, ajunge la is better.

Sometimes, yes, but the meaning changes slightly.

• Costă un milion. = It costs one million.
• Ajunge la un milion. = It reaches one million.

A costa simply gives the price.

A ajunge la suggests a process or change, as if the price has climbed or has ended up at that value.

So if you are talking about the final amount after an increase, ajunge la is especially natural.

Romanian often leaves that unstated if the context already makes it clear.

So un milion could mean:

• one million lei
• one million euros
• one million dollars
• etc.

If needed, Romanian can specify it:

• Prețul ajunge la un milion de lei.
• Prețul ajunge la un milion de euro.

Without that extra information, the sentence just says the price reaches one million, and the currency or unit is understood from context.