La maggioranza approva la delibera.

Because la maggioranza is grammatically singular. Even though a majority is made up of many people, Italian treats maggioranza as a singular noun, so the verb is singular too:

• la maggioranza approva = the majority approves

This is similar to English the majority approves, although English sometimes uses plural agreement in informal contexts. In standard Italian here, approva is the normal choice.

Approva is the present indicative of approvare.

So it can mean:

• approves
• is approving
• sometimes even does approve, depending on context

In a sentence like this, it most naturally means approves.

Italian uses definite articles very often, more often than English does.

Here:

• la maggioranza = the majority
• la delibera = the resolution / the measure / the motion

The articles show that both are understood as specific things in the situation being discussed. In formal or institutional language, this is very common.

Here delibera is a noun, and it usually means something like:

• resolution
• measure
• decision
• motion

The exact English translation depends on context, especially in legal, political, or administrative settings.

So approvare la delibera often means to approve the resolution or to pass the measure.

Yes. Delibera can also be the third-person singular present of deliberare:

• lui/lei delibera = he/she deliberates or passes a resolution

But in La maggioranza approva la delibera, it is clearly a noun because it comes after the article la:

• la delibera = the resolution

So the structure makes its role clear.

The structure is the standard Italian pattern:

• La maggioranza = subject
• approva = verb
• la delibera = direct object

So it follows a normal subject–verb–object order:

• The majority approves the resolution

This is one reason the sentence is straightforward for English speakers.

Yes, Italian allows more flexibility than English, but the neutral order here is:

• La maggioranza approva la delibera.

You can change the order for emphasis, but it may sound more marked or formal. For example:

• La delibera la approva la maggioranza.
  = It’s the majority that approves the resolution.

That version emphasizes la maggioranza. For a learner, the original sentence is the safest and most natural version.

The infinitive is approvare, meaning to approve.

A few present-tense forms are:

• io approvo = I approve
• tu approvi = you approve
• lui/lei approva = he/she approves
• noi approviamo = we approve
• voi approvate = you all approve
• loro approvano = they approve

So approva is the he/she/it form, used here with the singular subject la maggioranza.

Yes, maggioranza is a feminine singular noun. You can tell because it takes the feminine article la:

• la maggioranza

Many nouns ending in -anza are feminine, although it is always best to learn nouns together with their article.

Because it is singular and feminine, any adjective agreeing with it would also be singular and feminine.

Yes, somewhat. Both maggioranza and delibera are common in formal, political, legal, or administrative contexts.

So the sentence sounds like something you might hear in:

• a meeting
• a council session
• a board vote
• parliamentary or official proceedings

It is perfectly normal Italian, but it belongs more to formal/public language than everyday casual conversation.