Portuguese Accent Marks Explained: A Guide to Portuguese Pronunciation

Hey there, Portuguese learner! Today, we’ll be diving into the world of Portuguese accent marks, those pesky little marks that sit atop vowels and underneath the letter C. If you’re a speaker of French, Spanish, or any other Romance language, you’re probably very familiar with these little guys. 

But if Portuguese is the first foreign language you’re studying, you might be wondering what the fuss is all about. Why does Portuguese need all those accents and squiggles, while English seems to do just fine without them? 

Fear not. I’m here to uncover the mysteries of  Portuguese diacritics, including the general usage rules of each one of them.

How did Portuguese accent marks come to be?

These fancy little marks can make or break a word’s meaning. You might be wondering why some languages, like Portuguese, use diacritics so extensively, while others, like English, don’t use them much at all. Well, let me take you on a linguistic journey and explain it all to you.

First off, let’s talk about what diacritics are. In case you’re not familiar, diacritics are marks added to letters in a written language to indicate things like pronunciation, stress, or even a change in meaning. 

In Portuguese, for example, the tilde (˜) added to the letter A changes it from a regular /a/ sound to a nasal /ahn/ sound, as in the word maçã (apple), which is pronounced /mah-sahn/. 

In English, on the other hand, there are not many diacritics — just the occasional accent mark to indicate stress in loanwords like “café” or “résumé” (which have themselves been falling out of use anyway).

So, why the difference? It all comes down to the evolution of each language. Romance languages like Portuguese, Spanish, and French evolved from Latin, which used a lot of diacritics. 

Over time, as these languages evolved, they kept the diacritics to preserve the original pronunciation of Latin words and distinguish between words with similar spellings but different meanings.

English, in turn, evolved from Germanic languages, which didn’t use diacritics much. Old English, the language spoken in England before the 11th-century Norman Conquest, did use diacritics to indicate vowel length and other things, but these were eventually phased out. 

As English became a global language, it also absorbed loanwords from many other languages, including Romance languages, but these loanwords were often anglicized and their diacritics removed.

That’s not to say that English doesn’t have its own way of indicating pronunciation and meaning — it just does it differently. English often uses context to indicate meaning, as in the words “read” (present tense) and “read” (past tense) which are spelled the same but pronounced differently.

Portuguese diacritical marks

1. The acute accent (´)

The acute accent is by far the most common of Portuguese accents. This diacritical mark that looks like a right-leaning little slash leaning (´) is used to indicate stress on a syllable. 

When placed atop A, E, and O, it also marks that those vowels have an open sound, as opposed to the closed sound that the circumflex accent signals (more on that below).

The acute accent has been used in Portuguese since at least the 16th century, and it was originally used to mark long vowels. Over time, its usage changed to mark stress, and it’s now an essential part of Portuguese spelling.

One interesting fact about the acute accent is that it’s the only one that can be placed atop all five vowels in Portuguese. 

The rules for accentuation in Portuguese are complex and depend on the syllable stress pattern of each word. I won’t detail them here because I don’t want to fill the post with technicalities.

Let’s look at some examples, though:

• avó (“grandmother”) — accent on the last syllable
• café (“coffee”) — accent on the last syllable
• gambá (“skunk“) — accent on the last syllable
• fácil (“easy”) — accent on the second-to-last syllable
• régua (“ruler”) — accent on the second-to-last syllable
• saída (“exit”) — accent on the second-to-last syllable
• helicóptero (“helicopter”) — accent on the third-to-last syllable
• médico (“doctor”) — accent on the third-to-last syllable
• pássaro (“bird”) — accent on the third-to-last syllable

As you can see, the placement of the accent mark can vary depending on the word. It can be a bit tricky for English speakers to get the hang of, but with practice, it’ll become more intuitive.

2. The circumflex accent (ˆ)

The circumflex accent, which first-grade teachers call o chapeuzinho do vovô (i.e. “grandpa’s little hat”) dates back to ancient Greek and Latin, where it was used to denote a long vowel sound. 

In Portuguese, it also marks the stress of a word. But unlike the acute accent, it’s used to indicate that a vowel has a closed sound rather than an open one. It’s not as common as its acute counterpart, but it’s definitely up there.

The circumflex accent is used in two different situations. The first one is to indicate that an A, E, or O is pronounced with a closed sound rather than an open one in words that require a diacritic. For example:

• avô (“grandfather”)
• importância (“importance”)
• pêssego (“peach”)
• você (“you”)

The second case is to distinguish between words that can’t easily be identified by context. Though this usage was a lot more common before two major spelling reforms were implemented over the last 50 years, now it’s limited to two pairs:

• pôde (“could”) vs. pode (“can”)
• pôr (“to put”) vs. por (“by” or “for”)

Pôr and por are pronounced the same way, yet pôde uses a closed O (as opposed to pode’s open one).

Note that many words that are written with a circumflex accent in Brazil get an acute accent in Portugal instead. That’s because the pronunciation of these words changes between each side of the Atlantic. 

Highlights include econômico/económico (“economic”), gênero/género (“gender” or “genre”), bebê/bebé (“baby”), and Antônio/António (the first name Anthony). 

3. The grave accent (`)

The grave accent in Portuguese is used for the so-called crasis, a phenomenon in which two vowel sounds merge into a single sound. 

It indicates that the last vowel of a preposition or article combines with the first vowel of the following word. The result is a single syllable that is pronounced as one sound.

The use of the grave accent in Portuguese dates back to the 16th century and was adopted from French, where it is used to distinguish between words that are spelled the same but have different meanings, such as a (“has”) and à (“to”).

In Portuguese, the grave accent is used only on the letter A. It embodies a conjunction between the preposition a (“to”) and, in most cases, the definite feminine article a (“the”). 

Less often, the preposition a merges with the demonstrative adjectives or pronouns aquele/aquela/aqueles/aquelas (“that one”/“those ones”) and becomes àquele/àquela/àqueles/àquelas.

For example:

Vou à escola. (“I’m going to the school.”)

• O presidente falou à multidão. (“The president spoke to the crowd.”)
• Ela está se referindo àquele dia em que almoçamos juntos. (“She is referring to that day we had lunch together.”)

The use of the grave accent can be challenging, even for native speakers. It’s important to pay attention to the gender and number of the nouns to determine if crasis is necessary. 

Still, unless you need to use Portuguese for business or in an academic setting, you’ll be absolutely forgiven if you can’t follow its usage rules to a T.

4. The tilde (˜)

The Portuguese tilde, locally til, is a diacritic mark that looks like a little wavy line. It has an interesting history, as it was originally used in Latin manuscripts to indicate that a letter was doubled, for example, annus (“year”) versus anus (“anus”). 

In the Middle Ages, it also came to be used to indicate nasalization, which is the distinctive sound produced by pronouncing certain vowels with the sound resonating in the nose.

In Portuguese, the tilde is used precisely to mark that, just like in Middle Ages Latin. In fact, nasalization is an important feature of Portuguese, as phonetically there are many words that are distinguished solely by their nasalization. 

For example, pão translates as “bread”, while pau means “stick”. When pronouncing each of the two words, the only difference between them is the nasalization of the A.

The tilde is used on top of A and O. When a vowel is nasalized, it sounds like it’s being pronounced through the nose, almost like the U in “funky” or the E in “French”. 

5. The cedilla (¸)

This little squiggle under the letter “c” in Portuguese can really make a big difference. Let’s start off with the history of this diacritic. 

The cedilla originated in France in the 16th century as a way to differentiate the soft /c/ sound (as in “city”) from the hard /c/ sound (as in “cat”). 

Portuguese, being the mix of Latin and other languages that it is, borrowed the cedilla in the 19th century to indicate the same soft /c/ sound, which is called Ç (cê-cedilha).

So, how do we use it? Well, whenever the letter C is followed by the vowels A, O, or U, it produces a hard /c/ sound, like in casa, (“house”) cor (“color”), and cultura (“culture”). 

Yet when C is followed by the vowels E or I, it produces the soft /c/ sound, like in céu (“sky”) or cidade (“city”). To mark this soft /c/ sound before A, O, or U, we add the cedilla to the C. Then you’ll have açaí (aha!), aço (“steel”), and açúcar (“sugar”).

Note that, unlike French, cedilla is never used at the beginning of a word. Whenever you hear a soft /c/, i.e. an /s/ sound there, you can be sure the word starts with an S.

Final thoughts

There you have it: a quick rundown on the use of Portuguese accent marks. It’s always fascinating to explore the intricacies of different languages and the unique ways in which they express meaning. 

From the acute accent to the circumflex, the cedilla to the tilde, accents in Portuguese can make a big difference in how we interpret and understand words.

So next time you come across a word with a diacritical mark as you learn Portuguese, take a moment to appreciate the subtle nuance it adds to the language.