Odvojili smo novac za rezervu.

A very literal breakdown is:

• odvojili = separated / set aside
• smo = we are / we have here functioning as the auxiliary for the past tense
• novac = money
• za rezervu = for a reserve / for backup / for an emergency fund

So the sentence means something like We set aside money for a reserve.

In natural English, depending on context, you might also translate it as:

• We put some money aside for emergencies.
• We set aside money as a reserve.

This is about Serbian word order, especially the position of short unstressed words called clitics.

The word smo is a clitic, and clitics usually come in the second position of the sentence or clause.

So in:

• Odvojili smo novac za rezervu.

the first element is Odvojili, and smo comes right after it.

You can also hear or see:

• Mi smo odvojili novac za rezervu.

Here mi is the first element, so smo comes after mi.

English speakers often expect we have set aside, with the auxiliary first, but Serbian handles this differently.

In Serbian, the subject pronoun is often omitted because the verb already tells you who the subject is.

Here, smo tells you it is we.

So:

• Odvojili smo = we set aside / we have set aside

If you want to emphasize we, you can add the pronoun:

• Mi smo odvojili novac za rezervu.

That sounds like We are the ones who set the money aside.

So the pronoun is optional unless you want emphasis or contrast.

It is the perfect tense, which is the normal past tense in everyday Serbian.

It is formed with:

• the auxiliary biti in the present tense
• plus the past active participle

Here:

• smo = we have
• odvojili = past participle form

So:

• odvojili smo = we set aside / we have set aside

In many contexts, Serbian perfect tense covers both English simple past and present perfect.

So depending on context, it can mean either:

• We set aside the money or
• We have set aside the money

That ending shows agreement with the subject in number and sometimes gender.

Because the subject is we, the participle is plural. In the standard masculine/mixed plural form, you get:

• odvojili

Compare:

• Ja sam odvojio = I set aside, if the speaker is male
• Ja sam odvojila = I set aside, if the speaker is female
• Mi smo odvojili = we set aside, masculine or mixed group
• Mi smo odvojile = we set aside, all-female group

So in your sentence, odvojili tells you the speaker is part of a plural group, usually masculine or mixed unless context says otherwise.

Odvojiti is perfective.

That means it presents the action as a completed whole: the money has been successfully set aside.

Its imperfective partner is usually:

• odvajati

So:

• Odvojili smo novac za rezervu. = We set aside the money / We have set aside the money.
  Completed action.
• Odvajali smo novac za rezervu. = We were setting aside money for a reserve / We used to set aside money for a reserve.
  Ongoing, repeated, or habitual action.

This is a very important distinction in Serbian.

Yes, but it would mean something different.

• Odvojili smo novac za rezervu.
  = We set aside money for a reserve.
  This sounds like a completed action.

• Odvajali smo novac za rezervu.
  = We were setting aside money for a reserve / We used to set aside money for a reserve.
  This sounds ongoing, repeated, or habitual.

So if the idea is we made sure some money was put aside, the perfective odvojili is the natural choice.

Novac is the direct object here, so it is in the accusative case.

However, for many masculine inanimate nouns in Serbian, the accusative singular looks the same as the nominative singular.

So:

• nominative: novac
• accusative: novac

That is why you do not see a visible change.

This is normal and very common with masculine inanimate nouns.

Rezervu is accusative singular.

The base form is:

• rezerva = reserve

After the preposition za, when it means for in the sense of purpose, intended use, goal, Serbian typically uses the accusative.

So:

• za rezervu = for a reserve
• rezerva → rezervu in the accusative singular

This is a very common pattern:

• novac za stan = money for an apartment
• novac za put = money for a trip
• novac za rezervu = money for a reserve

Here za rezervu means something like:

• as a reserve
• for backup
• for emergencies
• for an emergency fund

The noun rezerva can mean reserve, backup, stock, or something kept in case it is needed later.

So this phrase suggests the money is not for immediate spending. It is being kept aside for safety, future need, or emergencies.

Serbian does not have articles like English a/an and the.

So:

• novac can mean money, the money, or sometimes some money
• rezervu can mean a reserve or the reserve

Which meaning is intended depends on context.

This is one of the big differences from English, and learners often have to get used to relying on context instead of articles.

Yes. Serbian word order is fairly flexible, though not completely free. Different orders can shift emphasis.

For example:

• Odvojili smo novac za rezervu.
  Neutral: We set aside money for a reserve.

• Novac smo odvojili za rezervu.
  Emphasis on money.

• Za rezervu smo odvojili novac.
  Emphasis on for a reserve.

The clitic smo still tends to stay in second position in the clause, so even when word order changes, you often see that rule preserved.

Yes, very common.

Odvojiti novac means to set money aside, to allocate money, or to put money away for a purpose.

It is often used in practical contexts like budgeting, saving, planning, and finance.

For example:

• Odvojili smo novac za put. = We set aside money for the trip.
• Treba da odvojimo novac za račune. = We need to set aside money for bills.
• Odvajam deo plate sa strane. = I set part of my salary aside.

So this sentence uses a very natural everyday pattern.

They are related, but not identical.

• odvojiti novac = to set money aside, to earmark it, to separate it for a purpose
• uštedeti novac = to save money, either by not spending it or by accumulating savings

So:

• Odvojili smo novac za rezervu.
  = We set aside money for a reserve.

• Uštedeli smo novac za rezervu.
  = We saved money for a reserve.

The first focuses on allocation.
The second focuses more on saving up.

Yes.

Because Serbian has no articles, novac here can be understood as:

• money in a general sense
• some money
• the money

The most natural interpretation in many contexts is simply:

• We set aside money for a reserve

If the speaker wanted to be more specific, they could add other words, such as:

• taj novac = that money
• deo novca = part of the money
• nešto novca = some money

So the sentence itself is naturally a bit broader than an English version with a fixed article.