Countable vs Uncountable Nouns

Some nouns name things you can count one by one — uma cadeira (a chair), três livros (three books). Others name stuff that comes in undivided masses — água (water), arroz (rice), dinheiro (money). Portuguese, like English, treats these two groups differently: mass nouns resist the plural and the indefinite article, and they take special quantifiers. The interesting part is that the line between countable and uncountable does not fall in the same place in the two languages. Portuguese happily counts several nouns that English forces into a "piece of" construction.

Mass (uncountable) nouns

A mass noun names a substance or abstract quality with no natural unit. In its bare mass meaning it normally appears without a plural and without um/uma:

Preciso de água, estou morrendo de sede.

I need water, I'm dying of thirst.

Não sobrou arroz pro almoço de amanhã.

There's no rice left for tomorrow's lunch.

Paciência é a única coisa que me falta hoje.

Patience is the one thing I'm lacking today.

You quantify mass nouns with muito/pouco (which agree in gender), um pouco de, or a measure phrase (um copo de, um quilo de).

QuantifierExampleEnglish
muito / muitamuito dinheiro, muita águaa lot of money, a lot of water
pouco / poucapouco café, pouca paciêncialittle coffee, little patience
um pouco deum pouco de sala little salt
measure + deum copo de água, um quilo de arroza glass of water, a kilo of rice

Põe só um pouco de sal, senão fica intragável.

Put just a little salt, otherwise it's inedible.

Ele ganha muito dinheiro, mas vive reclamando.

He earns a lot of money but is always complaining.

💡
Mass nouns agree in gender with their quantifier: muito dinheiro (masculine), muita água (feminine). This is one reason it's worth always learning a noun with its gender — it surfaces every time you quantify it.

Count nouns

Count nouns take um/uma in the singular, a numeral or plural in the plural, and quantifiers like muitos/poucos/vários.

Tem três cadeiras na varanda, traz mais uma.

There are three chairs on the balcony, bring one more.

Vários amigos meus já moraram fora.

Several friends of mine have lived abroad.

When a mass noun gets counted

A mass noun can be "re-counted" when you mean a portion, serving, or type of it. This is the same move English makes with two coffees or three beers, but Portuguese does it very freely.

Dois cafés e um pão de queijo, por favor.

Two coffees and one cheese bread, please.

A gente provou uns cinco azeites diferentes na feira.

We tasted about five different olive oils at the market.

Here um café = a (cup of) coffee, dois cafés = two servings of coffee, cinco azeites = five kinds/bottles of olive oil. The mass noun temporarily becomes a count noun naming units or varieties.

Where Portuguese and English disagree

This is the high-value contrast for English speakers. Several nouns that English treats as strictly uncountable are normal count nouns in Brazilian Portuguese, so you can put um/uma on them and pluralize them directly — no "piece of" needed.

English (mass, needs "a piece of")Brazilian Portuguese (countable)
a piece of adviceum conselho
a piece of informationuma informação
a piece of newsuma notícia
a piece of furnitureum móvel (plural: móveis)
a piece of bread / a loafum pão (plural: dois pães)
a piece of luggageuma mala / uma bagagem

Posso te dar um conselho? Não assina nada hoje.

Can I give you a piece of advice? Don't sign anything today.

Acabei de receber uma informação importante sobre o voo.

I just got an important piece of information about the flight.

Comprei dois pães na padaria pra fazer torrada.

I bought two loaves at the bakery to make toast.

Note the asymmetry: mobília (furniture) tends to stay mass in Portuguese, but its near-synonym móvel is fully countable (os móveis da sala). And while informação is countable, the abstract sense ("information in general") still works as a mass noun: muita informação.

💡
When you translate from English, don't carry over "a piece of." English says it because advice, information, and news are uncountable for it. Portuguese simply counts them: um conselho, uma informação, uma notícia. Saying um pedaço de informação sounds bizarre — like "a chunk of information."

Abstract qualities as mass nouns

Abstract nouns (amor, coragem, paciência, felicidade) behave like mass nouns: usually no plural, no um/uma, quantified with muito.

Ela enfrentou tudo com muita coragem.

She faced everything with a lot of courage.

But just like café, they can be counted when individualized into instances or types — as alegrias da vida (life's joys), os amores da minha juventude (the loves of my youth) — typically in a literary or affective register.

Common Mistakes

❌ Vou te dar um pedaço de conselho.

Incorrect — Portuguese doesn't use 'a piece of' here; 'conselho' is simply countable.

✅ Vou te dar um conselho.

I'll give you a piece of advice.

❌ Preciso comprar muitas mobílias novas.

Incorrect — 'mobília' is mass; use 'móveis' to count.

✅ Preciso comprar muitos móveis novos.

I need to buy a lot of new furniture.

❌ Tem muito cadeiras na sala.

Incorrect — count nouns take 'muitas', not the mass-noun form 'muito'.

✅ Tem muitas cadeiras na sala.

There are a lot of chairs in the room.

❌ Me passa duas águas?

Usually wrong unless you mean two bottles — bare 'água' is mass.

✅ Me passa um pouco de água? / Me passa duas garrafas de água?

Can you pass me some water? / two bottles of water?

❌ Recebi uma boa nova informações.

Incorrect — agreement and number broken.

✅ Recebi uma informação boa. / Recebi várias informações.

I got a good piece of information. / I got several pieces of information.

Key Takeaways

  • Mass nouns (água, arroz, dinheiro, café, paciência) avoid the plural and um/uma, and take muito/pouco/um pouco de or a measure phrase.
  • Quantifiers agree in gender: muito dinheiro, muita água.
  • A mass noun gets re-counted for portions or types: dois cafés, cinco azeites.
  • Portuguese counts several English-mass nouns directly — um conselho, uma informação, uma notícia, dois pães — so drop the "a piece of."
  • Watch the synonym splits: mobília (mass) vs móvel/móveis (count).

Now practice Portuguese

Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.

Start learning Portuguese

Related Topics

  • Partitive Constructions in BRB1Brazilian Portuguese has no partitive article — where French says 'du pain' and English 'some bread', BR uses a bare noun or a measure phrase. How to express indefinite quantities with 'de', 'um pouco de', and measure words.
  • Collective NounsB1Brazilian Portuguese's rich set of collective nouns — cardume, alcateia, enxame — and why they take singular verb agreement (with one notable exception).
  • Quantifiers: Muito, Pouco, BastanteA1How Brazilian Portuguese quantifying determiners (muito, pouco, tanto, quanto, bastante, mais, menos, vários) agree — and why the very same word inflects before a noun but freezes before an adjective or verb.
  • Indefinite Articles: Um, Uma, Uns, UmasA1The Brazilian indefinite article — its agreeing forms, the plural uns/umas meaning 'some' or 'about', and the many places BR drops it where English keeps 'a'.