Il condomino si astiene mentre l'assemblea condominiale delibera.

Condomino means a co-owner / resident in a condo building, especially in the legal or administrative sense of someone who belongs to the condominium association.

It is not the same as condominio, which is the condominium building or condo association itself.

So:

• il condominio = the condominium / condo building / condo association
• il condomino = the individual condo owner or member

This is an important distinction, because English speakers can easily confuse the two.

Because the verb here is astenersi, which means to abstain or to refrain.

It is a pronominal verb, so it normally appears with a reflexive-style pronoun:

• mi astengo = I abstain
• ti astieni = you abstain
• si astiene = he/she abstains
• ci asteniamo = we abstain
• vi astenete = you all abstain
• si astengono = they abstain

So si is not optional here. You learn the verb as astenersi, not just astenere in this meaning.

It is the present indicative.

More specifically:

• si = the pronoun used with astenersi
• astiene = 3rd person singular present of astenersi

So Il condomino si astiene means The condo owner abstains or The resident abstains.

Yes. It is based on tenere and follows a similar pattern in the present tense.

For example:

• mi astengo
• ti astieni
• si astiene
• ci asteniamo
• vi astenete
• si astengono

That is why the form is astiene and not something more regular-looking.

Mentre usually means while.

In this sentence, it connects two actions happening at the same time:

• Il condomino si astiene = the condo owner abstains
• mentre l'assemblea condominiale delibera = while the condominium assembly deliberates / votes / passes a resolution

So mentre shows simultaneity: one thing happens while the other is happening.

L'assemblea condominiale is the condominium assembly/meeting: the formal meeting of the condo owners or members where building matters are discussed and decisions are made.

This is a very common legal/administrative expression in Italian housing contexts.

Breakdown:

• assemblea = assembly, meeting
• condominiale = relating to the condominium

So together it means something like:

• the condominium meeting
• the condo association meeting
• the assembly of condo owners

Here delibera is the verb deliberare, 3rd person singular present.

In everyday English, depending on context, it can mean:

• deliberates
• makes a decision
• passes a resolution
• votes on and approves something

In administrative or legal contexts, deliberare often has the specific sense of formally deciding or adopting a resolution.

So in this sentence, delibera is a bit more formal than plain decides.

Yes. Delibera can be either:

• a verb form: (he/she/it) deliberates
• a noun: resolution, formal decision

Here it is a verb, because it follows the subject:

• l'assemblea condominiale delibera = the condominium assembly deliberates / passes a resolution

If it were a noun, the structure would look different, such as:

• la delibera dell'assemblea = the assembly's resolution

Because la becomes l' before a feminine singular noun beginning with a vowel.

So:

• la casa
• la riunione
• but l'assemblea

This is just the normal contraction of the feminine singular definite article before a vowel.

Italian often omits subject pronouns like he, she, or it, but nouns are still used when needed for clarity.

Here the sentence names both subjects clearly:

• Il condomino = the condo owner
• l'assemblea condominiale = the condominium assembly

This avoids ambiguity. If you replaced them with pronouns, it could become less clear who is doing what.

Yes. Italian present tense often works that way.

This sentence could describe:

• something happening right now
• a habitual procedure
• a formal rule or report-style statement

So it may mean either:

• The condo owner is abstaining while the assembly deliberates
• or more generally The condo owner abstains while the assembly deliberates

The exact nuance depends on context.

Yes, Italian word order is somewhat flexible, but this version is the most neutral and clear:

• Il condomino si astiene mentre l'assemblea condominiale delibera.

You could rearrange parts for emphasis, but the standard order is:

subject + verb + mentre + second subject + second verb

Because the sentence is formal and administrative in tone, this straightforward word order sounds very natural.