Ela conta nos dedos até dez em português.

Here, conta comes from the verb contar and means counts.

So Ela conta... = She counts...

A useful note: contar can have other meanings too, such as to tell or to narrate, depending on context. But with até dez, it clearly means to count.

Because ela means she, and conta is the third-person singular form of contar in the present tense.

So:

• eu conto = I count
• você conta = you count
• ela conta = she counts
• ele conta = he counts

The verb form matches the subject ela.

Nos dedos means on the fingers.

The word nos is a contraction of:

• em = in/on
• os = the

So:

• em + os = nos

That means:

• nos dedos = on the fingers

In this sentence, contar nos dedos is the natural way to say to count on one’s fingers.

Portuguese often uses the definite article with body parts when the owner is already clear from the context.

So instead of saying on her fingers, Portuguese commonly says simply:

• nos dedos = literally on the fingers

Because the subject is ela, it is naturally understood that these are her fingers.

Using nos seus dedos is possible, but it usually sounds more emphatic, contrastive, or less natural in a simple sentence like this.

Até dez means up to ten or to ten.

With counting, English usually says count to ten, while Portuguese uses até:

• contar até dez = to count to ten

So até marks the endpoint of the counting.

Em português means in Portuguese.

It tells you the language she is using while counting.

So the idea is that she is counting to ten using Portuguese number words.

A useful pattern:

• em inglês = in English
• em espanhol = in Spanish
• em português = in Portuguese

When talking about languages after em, Portuguese normally does not use an article.

So you say:

• em português
• em inglês
• em francês

not usually:

• em o português

This is just the normal pattern for naming the language used.

It describes the whole action of counting.

So the sentence means that she counts on her fingers up to ten, and she does that in Portuguese.

It does not mainly mean that only the word ten is in Portuguese. The phrase tells you the language of the counting overall.

Grammatically, conta is the present tense, and it can often describe:

• a habit
• a general ability
• something that regularly happens

So Ela conta nos dedos até dez em português most naturally sounds like:

• She counts to ten on her fingers in Portuguese
• or She can count to ten on her fingers in Portuguese

If you wanted to make it clearly right now, Brazilian Portuguese often prefers:

• Ela está contando nos dedos até dez em português.

That said, the simple present can still be used depending on context.

The word order is fairly natural as written, but Portuguese does allow some flexibility.

The sentence as given:

• Ela conta nos dedos até dez em português.

is clear and natural.

You may also hear variations such as:

• Ela conta até dez nos dedos em português.

The meaning stays basically the same, but different orders can sound more or less natural depending on emphasis and rhythm.

In general:

• Ela conta = subject + verb
• nos dedos = how / using what
• até dez = up to what number
• em português = in what language

Yes. It is a normal and common way to express the idea of counting on one’s fingers.

Literally, it refers to using the fingers to keep track of numbers. In other contexts, contar nos dedos can also become an idiomatic expression meaning something like to be very few.

For example:

• Dá para contar nos dedos. = You can count them on one hand / There are very few.

But in your sentence, it has the literal meaning: she is actually counting with her fingers.

Português is stressed on the last syllable:

• por-tu-GUÊS

The accent mark shows the stressed syllable and also helps indicate the vowel quality.

In Brazilian Portuguese, it is pronounced approximately like:

• por-too-GES

The final -ês is an important stressed ending that also appears in some other nationality/language words, such as:

• inglês = English
• francês = French
• japonês = Japanese

So the accent is both a pronunciation guide and part of the correct spelling.