Hidratarea începe la punctul de hidratare.

Because hidratarea means the hydration, while hidratare means just hydration in a general or indefinite sense.

Romanian often puts the definite article at the end of the noun, unlike English.

• hidratare = hydration
• hidratarea = the hydration

So in this sentence, hidratarea is a definite noun: it refers to a specific process or concept already understood in context.

Începe means begins or starts.

It is the 3rd person singular present tense form of the verb a începe = to begin / to start.

Examples:

• Eu încep = I begin
• Tu începi = you begin
• El/Ea începe = he/she begins
• Hidratarea începe = the hydration begins

So the subject hidratarea is singular, and the verb matches it.

For the same reason as hidratarea: punctul means the point.

• punct = point
• punctul = the point

Romanian attaches the definite article to the end of the noun:

• masculine/neuter singular often take -ul
• feminine singular often take -a

So:

• hidratarea = the hydration
• punctul = the point

Here la means something like at or to, depending on context. In this sentence, la punctul de hidratare means at the hydration point or at the hydration station/point.

Romanian la is very common and can cover several ideas that English expresses with at, to, or sometimes in/on depending on the phrase.

In this sentence:

• începe la... = begins at...

So:

• Hidratarea începe la punctul de hidratare.
• The hydration begins at the hydration point.

De often means of, but in Romanian it is also used very often to link nouns in a way that English might translate with of, for, or an adjective-like structure.

So:

• punct de hidratare literally = point of hydration
• more natural English = hydration point or hydration station

This is a very common Romanian pattern:

• sală de sport = gym / sports hall
• sticlă de apă = bottle of water
• program de lucru = work schedule

So punctul de hidratare is a normal noun phrase structure.

Because the sentence uses it once as the main subject (hidratarea) and once inside the expression punctul de hidratare.

So the two parts are doing different jobs:

• Hidratarea = the subject
• de hidratare = describes what kind of point it is

Romanian sometimes repeats a word in cases where English might also repeat it, even if it sounds slightly formal or technical:

• Hidratarea începe la punctul de hidratare.

This sounds somewhat formal, instructional, or specialized. In real-life usage, depending on context, a speaker might choose a less repetitive version, but grammatically this sentence is perfectly fine.

Yes. Hidratare is feminine.

You can tell from the definite singular form:

• hidratare → hidratarea

That -a definite ending is typical of many feminine nouns.

Because it is feminine singular, if you later referred to it with a pronoun, you would use feminine agreement.

Yes, the basic word order is very similar to English here:

• Hidratarea = subject
• începe = verb
• la punctul de hidratare = prepositional phrase

So it is basically:

Subject + Verb + Prepositional phrase

This is one reason the sentence is fairly easy for an English speaker to follow.

A rough pronunciation guide:

• începe ≈ uhn-CHEH-peh
• hidratarea ≈ hee-dra-ta-REH-a

A few useful notes:

• î is a Romanian vowel that does not exist exactly in English. It is a close central vowel, somewhat like saying i or uh with the tongue centered. For beginners, a rough uh is an acceptable approximation.
• ce in Romanian sounds like che in check, so începe has che in the middle.
• Romanian usually pronounces all vowels clearly, so hidratarea has distinct syllables.

Because Romanian usually uses a postposed definite article, meaning the definite article is attached to the end of the noun instead of appearing as a separate word before it.

Compare:

• English: the hydration

• Romanian: hidratarea

• English: the point
• Romanian: punctul

This is one of the most important differences between Romanian and English grammar.

Yes, depending on context, it could be translated more naturally as water station, hydration point, or hydration station.

The most literal translation is the hydration point, but in natural English, especially in sports, races, or events, water station might be the best translation.

So the exact English wording depends on context, even though the Romanian structure stays the same.

It sounds somewhat formal, instructional, or specialized, rather than casual everyday speech.

That is mainly because:

• hidratarea is a fairly technical/abstract noun
• the phrase repeats hidratare
• punct de hidratare sounds like signage, event instructions, sports logistics, or medical/wellness language

A casual conversation might use a different phrasing depending on what the speaker wants to say, but this sentence is perfectly grammatical and natural in the right context.

Yes. Începe can mean both begins and starts.

So:

• Hidratarea începe... = The hydration begins...
• Hidratarea începe... = The hydration starts...

English may prefer one or the other depending on style, but both are valid translations of începe.