O débito em atraso ainda aparece no sistema.

Not exactly.

In this sentence, débito usually means an amount owed, outstanding charge, or unpaid balance. In Brazilian Portuguese, it is often used in practical contexts like:

• bills
• bank accounts
• fees
• taxes
• utility payments
• account statements

So débito can overlap with debt, but it often sounds more specific and administrative than the general English word debt.

For example, here it suggests something like an overdue charge/payment/balance that is still registered in the system.

Em atraso is a very common fixed expression in Portuguese meaning:

• overdue
• late
• past due

So débito em atraso means overdue debit / overdue balance / late payment owed.

You may also see similar expressions such as:

• pagamento em atraso = late payment
• conta em atraso = overdue bill
• parcela em atraso = overdue installment

Using em atraso is very natural in financial and bureaucratic language.

Ainda here means still.

So the idea is that the overdue balance continues to appear in the system, possibly even though the speaker expected it to be removed already.

Depending on context, ainda can also mean yet or even, but here still is the best match.

Aparece is the present indicative of aparecer and often works in Portuguese where English might use either:

• appears
• is showing
• shows up

In this sentence, aparece expresses a current state or ongoing fact: the item is listed / continues to show in the system.

Portuguese often uses the simple present more broadly than English does. So:

• ainda aparece no sistema
  = it still appears in the system = it’s still showing in the system

Both are valid translations depending on the tone.

Yes. Aparecer can mean:

• to appear
• to show up
• to be displayed
• to come up

In technical or administrative contexts like no sistema, it often means:

• is showing
• is listed
• appears on the system
• comes up in the system

So here it is not about something magically appearing; it means the record is still visible or registered in the system.

No is a contraction:

• em + o = no

So:

• no sistema = in the system

This kind of contraction is very common in Portuguese:

• em + a = na
• em + os = nos
• em + as = nas
• de + o = do
• de + a = da

You normally must use the contraction when it is possible, so em o sistema would sound wrong in standard Portuguese.

O means the and refers to a specific debit/balance that both speaker and listener can identify.

Portuguese uses definite articles very naturally, often more frequently than English. Here, o débito sounds like:

• the balance
• the overdue charge
• that unpaid amount

Without the article, débito em atraso would sound less like a complete sentence subject and more like a label or heading.

Yes, it sounds very natural, especially in formal, financial, banking, billing, and customer-service contexts.

You might see related phrases such as:

• há débitos em atraso = there are overdue balances
• você tem um débito em atraso = you have an overdue balance
• o débito consta no sistema = the balance is registered in the system

It has a slightly formal or administrative tone, which fits the sentence well.

They are related, but not always identical.

• dívida = debt in a broad, general sense
• débito = often a specific amount owed, especially in records, accounts, or financial systems

So:

• dívida can sound broader and more personal
• débito can sound more technical, official, or itemized

In many situations they overlap, but débito is especially common when talking about something registered in a billing or bank system.

You could, and it is understandable, but it may sound a little unnatural in English.

More natural translations would be:

• The overdue balance still appears in the system.
• The past-due charge still shows up in the system.
• The overdue payment is still showing in the system.
• The outstanding balance still appears in the system.

The best choice depends on context, but balance, charge, or payment often sounds better than debt here.

That version is grammatically possible, but it sounds less neutral.

The original sentence:

• O débito em atraso ainda aparece no sistema.

is the most natural and straightforward order for everyday use.

If you say:

• Ainda aparece no sistema o débito em atraso

it sounds more marked or stylistic, and it may emphasize the fact that it is still appearing.

For a learner, the original word order is the safest choice.

A Brazilian speaker might say something simpler depending on context, for example:

• A conta atrasada ainda aparece no sistema.
• Esse débito ainda está no sistema.
• Ainda consta no sistema.
• Ainda está aparecendo no sistema.

The original sentence is natural, but it has a somewhat formal/customer-service/administrative tone. That is very common in banking, billing, and support contexts.