Društvo za osiguranje poslalo je odgovor.

Yes, društvo can mean society, association, or company, depending on context.

In business and legal language, društvo is often used for a company or corporate entity. So društvo za osiguranje is a standard way to say insurance company.

You may also see related expressions like:

• trgovačko društvo = commercial company
• osiguravajuće društvo = insurance company

So here, the context makes company the natural interpretation.

Here za means for, and in this use it takes the accusative case.

The noun osiguranje is a neuter singular noun. For this type of noun, the nominative and accusative forms are the same, so you see osiguranje in both cases.

So:

• osiguranje = nominative singular
• osiguranje = accusative singular

Literally, društvo za osiguranje is something like company for insurance.

Because the past participle agrees with the subject in gender and number.

The subject is društvo, which is:

• neuter
• singular

So the participle must also be neuter singular:

• poslao = masculine singular
• poslala = feminine singular
• poslalo = neuter singular

That is why the sentence has poslalo.

Je is the 3rd person singular present form of biti (to be), and here it works as an auxiliary verb.

Croatian commonly forms the past tense with:

• the l-participle
  • auxiliary biti

So:

• poslalo je = sent / has sent

This is the normal past-tense construction in standard Croatian.

Both are possible in Croatian.

• Društvo za osiguranje je poslalo odgovor.
• Društvo za osiguranje poslalo je odgovor.

They mean the same thing. The version with poslalo je is very common in formal written Croatian, especially in news, reports, and official style.

So this is mainly a matter of word order and style, not a difference in meaning or tense.

Odgovor is in the accusative singular because it is the direct object of the verb poslati.

The noun odgovor is:

• masculine
• inanimate

For masculine inanimate nouns, the accusative singular is the same as the nominative singular, so the form stays odgovor.

That is why you do not see any ending change here.

It can mean either, depending on context.

Croatian does not have articles like a and the, so odgovor by itself can mean:

• a reply
• the reply
• an answer
• the answer

The context tells you which one is meant.

The infinitive is poslati.

This is a perfective verb, which means it presents the action as completed. So the sentence focuses on the fact that the sending was accomplished.

Its imperfective partner is slati:

• slati = to send, to be sending, to send repeatedly
• poslati = to send off, to send successfully, to complete the act of sending

So poslalo je odgovor describes a completed action.

Yes. Osiguravajuće društvo is also a correct and common way to say insurance company.

The two expressions are very close in meaning:

• društvo za osiguranje
• osiguravajuće društvo

The first one is a noun + prepositional phrase structure, while the second uses an adjectival form. In real Croatian, both are used, especially in formal and business contexts.

Either can be correct, depending on context.

The Croatian perfect often corresponds to:

• English simple past: sent
• English present perfect: has sent

So poslalo je odgovor can be translated either way. Croatian does not always force the same distinction that English does between those two tenses.