Domaćin donosi sok.

Domaćin most often means host in a social situation, but it can also mean head of the household, master of the house, or even someone who runs/keeps a home well, depending on context.

In this sentence, the most natural interpretation is the host.

Domaćin is in the nominative singular, which is the normal case for the subject of the sentence.

Here:

• domaćin = the person doing the action
• donosi = the action
• sok = the thing being brought

So domaćin is the subject because it is the one who brings.

Good question. Sok is the direct object, so it is in the accusative case.

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

So:

• nominative: sok
• accusative: sok

That is why you do not see a change here.

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

So Domaćin donosi sok can mean:

• The host brings juice
• A host brings juice
• The host is bringing juice

The exact meaning depends on context.

If Serbian speakers want to make something more specific, they usually do it through:

• context
• word order
• demonstratives such as taj (that), ovaj (this), etc.

Donosi is present tense, 3rd person singular.

It comes from the verb donositi.

Because Serbian present tense can be used in several ways depending on context, donosi may mean:

• brings
• is bringing
• does bring / usually brings

So the sentence can describe:

• a current action
• a habitual action
• a general statement

The infinitive is donositi, which is an imperfective verb.

Present tense:

• ja donosim = I bring / am bringing
• ti donosiš = you bring
• on/ona/ono donosi = he/she/it brings
• mi donosimo = we bring
• vi donosite = you bring
• oni/one/ona donose = they bring

So donosi means he/she/it brings.

Serbian verbs usually come in aspect pairs:

• imperfective = ongoing, repeated, habitual, or uncompleted action
• perfective = completed action, single whole event

Donositi is the imperfective verb.

A common perfective partner is doneti (Ekavian) or donijeti (Ijekavian), depending on the standard/region.

So:

• Domaćin donosi sok. = The host brings / is bringing juice.
• Domaćin je doneo sok. = The host brought the juice. / The host has brought the juice.

In your sentence, the imperfective is used because the focus is simply on the action in progress or in general, not on its completion.

Yes. Serbian word order is fairly flexible because cases help show who is doing what.

The neutral order here is:

• Domaćin donosi sok.

But you could also hear:

• Sok donosi domaćin.
• Domaćin sok donosi.

These versions are not random—they change the focus or emphasis.

For example:

• Domaćin donosi sok. = neutral
• Sok donosi domaćin. = emphasis on juice or on who is bringing it
• Domaćin sok donosi. = emphasis may fall more on the action or object, depending on context

A beginner should usually learn the neutral order first: subject + verb + object.

A simple pronunciation guide:

• domaćin ≈ do-MAH-chin, but the ć is softer than English ch
• donosi ≈ do-NO-see

A few details:

• ć is a soft Serbian sound, somewhere between English t
  • y and a very soft ch
• č and ć are different sounds in Serbian
• š sounds like English sh
• c sounds like ts

So domaćin should not be pronounced with a hard English k or plain ch.

Yes, domaćin is a masculine singular noun.

The common feminine form is:

• domaćica

So:

• Domaćin donosi sok. = a male host brings juice
• Domaćica donosi sok. = a female host brings juice

Be careful: domaćica can also mean housewife or even a kind of hostess/cookie brand name, depending on context.

Yes. Sok is the general Serbian word for juice.

It can refer to:

• fruit juice
• a soft drink in some contexts
• juice as a beverage in general

If speakers want to be more specific, they can say:

• sok od pomorandže = orange juice
• sok od jabuke = apple juice

So in your sentence, sok is a broad, natural word.