Avdraget reduserer gjelden.

Avdraget is the definite singular form of the neuter noun et avdrag.

• et avdrag = an installment / a repayment amount
• avdraget = the installment / the repayment

In Norwegian, definiteness is usually added as an ending:

• et avdrag → avdraget
• en gjeld → gjelden

So avdraget means that we are talking about a specific repayment, not just any repayment in general.

Gjelden is the definite singular form of en gjeld.

• gjeld = debt
• gjelden = the debt

The sentence is talking about a particular debt, so Norwegian uses the definite form. This is very common in Norwegian, especially when the context already makes it clear which thing is meant.

Reduserer is the present tense of å redusere (to reduce).

So:

• å redusere = to reduce
• reduserer = reduces / is reducing

In Norwegian, the present tense is the same for all subjects:

• jeg reduserer
• du reduserer
• han/hun reduserer
• vi reduserer

Unlike English, the verb does not change depending on the person.

Yes. Avdraget reduserer gjelden follows the basic Norwegian pattern:

subject + verb + object

• Avdraget = subject
• reduserer = verb
• gjelden = object

This is the standard word order in a main clause.

Yes, but if you move something to the front, Norwegian still keeps the verb in second position in a main clause.

For example:

• Gjelden reduseres av avdraget = The debt is reduced by the installment
  (more passive-like and less direct)

Or with another element first:

• Med avdraget reduseres gjelden = With the installment, the debt is reduced

The original sentence is the most straightforward and natural active version.

Because Norwegian usually puts definiteness at the end of the noun instead of using a separate article.

Compare:

• an installment = et avdrag
• the installment = avdraget
• a debt = en gjeld
• the debt = gjelden

So English uses a separate word (the), while Norwegian usually uses a suffix.

This is an important vocabulary distinction in financial Norwegian.

• avdrag = the part of a payment that reduces the principal/debt
• renter = interest

So if you make a loan payment, part of it may go to:

• renter = interest costs
• avdrag = actual reduction of the debt

That is why the sentence says Avdraget reduserer gjelden. The avdrag reduces what you owe; the interest itself does not.

They are related, but not the same.

• lån = loan
• gjeld = debt

A loan is a specific financial arrangement or amount borrowed. Debt is the amount owed more generally.

So:

• lånet = the loan
• gjelden = the debt

In many contexts they overlap, but gjeld focuses more on the obligation/amount owed.

Reduserer is common and perfectly natural, especially in formal, financial, or written contexts.

A more everyday alternative can sometimes be:

• senker = lowers
• minsker = decreases
• gjør ... mindre = makes ... smaller

But in this kind of financial sentence, reduserer is a very good choice.

A simple approximate pronunciation for an English speaker is:

AV-dra-get re-du-SER-er YEL-den

A few notes:

• gj in gjeld is tricky; it sounds somewhat like a soft y-sound for many learners.
• The r in reduserer is Norwegian r, which varies by dialect.
• Stress is typically on:
  • AVdraget
  • SER in reduserer
  • YELD in gjelden

Exact pronunciation varies by dialect, but this approximation is a useful starting point.

Because both nouns are definite — avdraget and gjelden — the sentence most naturally refers to a specific installment and a specific debt.

If you wanted a more general statement, you might say:

• Avdrag reduserer gjeld = Installments reduce debt
• Et avdrag reduserer gjelden = An installment reduces the debt

So the original sentence sounds more specific than fully general.