aço

/ˈa.su/

//ˈa.su// noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“aço” sits in 20 confusable pairs (corpus #4,209) as a noun. The look-alike neighbours are the real trap.

#4,209
frequency rank, Portuguese
4,352
“A” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - liga composta principalmente de ferro e carbono utilizada para a fabricação de utensílios, armas, veículos e uma infinidade de outros objetos da vida moderna

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

aço vs As
0% similar
aço vs ao
67% similar
aço vs ar
33% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for aço
PropertyValue
Headwordaço
LanguagePortuguese
Part of speechNoun
IPA/ˈa.su/
Letters3
Frequency rank#4,209
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “aço” sits in Portuguese frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). aço lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for aço is neighbouring look-alikes ("As", "ao", …), not just typos; it is anoun pronounced /ˈa.su/. Frequency #4,209 among 4,352 “A” headwords. Gloss: "liga composta principalmente de ferro e carbono utilizada para a fabricação de utensílios, armas, veículos e uma infinidade de outros objetos da vida moderna".

We couldn't generate a plausible misspelling set for aço, which points to an orthography that plays by predictable Portuguese rules. It also participates in 20 confusable-pair relationships, "As", "ao", "ar", and more, where similar look or sound leads writers to substitute one word for another in context.

This entry's etymology isn't recorded, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Portuguese form is aço, spelled A-Ç-O.

Definition

  1. 1
    liga composta principalmente de ferro e carbono utilizada para a fabricação de utensílios, armas, veículos e uma infinidade de outros objetos da vida moderna

This word in other languages

steel(English)acero(Español)acier(Français)Stahl(Deutsch)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 Portuguese corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "aço"?
"aço" is spelled A-Ç-O. The IPA pronunciation is /ˈa.su/.
What does "aço" mean?
As a noun, "aço" means: liga composta principalmente de ferro e carbono utilizada para a fabricação de utensílios, armas, veículos e uma infinidade de outros objetos da vida moderna
What words are commonly confused with "aço"?
"aço" is commonly confused with "As", "ao", "ar". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "aço"?
The IPA (International Phonetic Alphabet) transcription for "aço" is /ˈa.su/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "aço" come from?
"aço" is a Portuguese word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “aço”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct Portuguese spelling is A-Ç-O - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈa.su/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “As” - see the side-by-side comparison. aço vs As
  • Browse more Portuguese words and confusable pairs in the same reference. Portuguese words

Words at a similar Portuguese frequency

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list