A convenção do condomínio inclui a contribuição extraordinária.

A is the feminine singular definite article, meaning the.

In Portuguese, articles are used more often than in English. Here, a convenção means the condominium agreement/bylaws, referring to a specific document. Leaving out a would usually sound unnatural in this context.

The same thing happens later with a contribuição extraordinária: it refers to a specific charge or type of charge already understood in the situation.

Do is a contraction of de + o:

• de = of
• o = the
• do = of the

So:

• a convenção do condomínio = the condominium’s agreement/bylaws
• more literally: the agreement of the condominium

This kind of contraction is extremely common in Portuguese:

• de + a = da
• de + os = dos
• de + as = das

Because the subject is singular: A convenção.

• A convenção = singular
• inclui = includes for ele/ela/você and for singular nouns

So the structure is:

• A convenção → subject
• inclui → singular verb
• a contribuição extraordinária → direct object

If the subject were plural, the verb would change:

• As convenções incluem... = The agreements include...

Not always. This is a partial false friend.

In many contexts, convenção can mean convention, as in a formal agreement or a large meeting. But in condominium language in Brazil, convenção do condomínio usually refers to the building’s or complex’s governing document, similar to:

• bylaws
• condominium agreement
• declaration
• governing rules

So here it does not mean a business convention or fan convention.

Not exactly, though it is related.

In Brazilian Portuguese, condomínio can refer to:

• an apartment building with shared administration
• a residential complex
• sometimes a gated community

So condomínio often refers not just to the ownership concept, but also to the whole residential entity and its administration.

Depending on context, condomínio can feel closer to:

• condo building
• residential complex
• homeowners’ association environment

It usually means an extraordinary contribution, which in natural English is often something like:

• special assessment
• extra fee
• one-time extra charge

In a condominium context, this is typically a charge collected outside the normal monthly fee, often to pay for things like:

• major repairs
• emergency work
• renovations
• unexpected expenses

So extraordinária here means not part of the regular routine payment.

Because in Portuguese, adjectives often come after the noun.

So:

• contribuição extraordinária = literally contribution extraordinary

This is normal word order in Portuguese. English usually puts adjectives before the noun, but Portuguese often places them after.

Other examples:

• taxa mensal = monthly fee
• regra interna = internal rule
• despesa extra = extra expense

Sometimes adjective position can change meaning or emphasis, but here the normal order is noun + adjective.

Grammatically, Portuguese usually prefers the article here: a contribuição extraordinária.

Without a, the sentence may sound less natural or more abstract, as if you were speaking about the concept in a very general way. In ordinary usage, especially in legal or administrative language, the article is expected.

So the most natural version is:

• A convenção do condomínio inclui a contribuição extraordinária.

Yes. In legal or administrative contexts, inclui can have a slightly broader sense than simple physical inclusion.

Here it may mean:

• includes
• contains
• provides for
• covers
• states/provides that there is

So depending on the full context, the sentence might suggest that the condominium bylaws allow for, mention, or establish that extraordinary contributions are part of the rules.

The accent marks help show pronunciation and stress.

A few important points:

• convenção has -ção, a very common ending in Portuguese
• condomínio has stress on mí
• contribuição contains uição, and the written form helps indicate the correct vowel pattern
• extraordinária has stress on ná

For a learner, the main practical point is: the accent tells you which syllable is stressed and sometimes helps distinguish vowel sounds.

Very roughly:

• convenção → con-ven-ÇÃO
• condomínio → con-do-MÍ-ni-o
• contribuição → con-tri-bu-i-ÇÃO
• extraordinária → ex-tra-or-di-NÁ-ri-a

A broad Brazilian-style approximation would be:

A convenção do condomínio inclui a contribuição extraordinária.

Roughly: a con-ven-SÃO do con-do-MEE-nyoo in-KLOO-ee a con-tree-boo-ee-SÃO es-tra-or-jee-NA-rya

A few useful pronunciation notes:

• ção sounds roughly like são with a nasal ending.
• nh in condomínio sounds like the ny in canyon.
• inclui is usually pronounced with separate vowel sounds: in-clu-i.
• In many Brazilian accents, unstressed de/do and final vowels may sound lighter than an English speaker expects.

Not exactly.

They are related, but they are usually different documents or different levels of rules.

• convenção do condomínio: the main governing document, more formal and structural
• regulamento interno: internal rules, often more about day-to-day behavior and practical matters

For example:

• the convenção may define general powers, obligations, and financial rules
• the regulamento interno may cover noise, pets, use of shared spaces, and schedules

So in this sentence, convenção suggests a more formal legal/administrative basis.

Yes. Even if the meaning is already known, it is useful to see that several English versions may fit:

• The condominium bylaws include the special assessment.
• The condo agreement includes the extraordinary contribution.
• The condominium rules provide for an extra contribution.
• The condominium convention includes the extraordinary fee.
  This last one is more literal, but less natural in English.

The best translation depends on context, especially whether contribuição extraordinária is being treated as a legal term, an accounting item, or a practical fee residents must pay.