ar

noun

The verdict

“ar” is in the everyday core of Portuguese, ranked #613 in Portuguese word frequency and used as a noun.

#613
frequency rank, Portuguese
2
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - fluido gasoso que envolve todo o planeta Terra; atmosfera

Visual similarity to commonly confused words

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

ar vs As
0% similar
ar vs at
50% similar
ar vs av
50% similar

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

Key facts for ar
PropertyValue
Headwordar
LanguagePortuguese
Part of speechNoun
Letters2
Frequency rank#613
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “ar” 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). ar lands here:

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

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

Spelling & Dictionary Insight

The Portuguese entry for ar is 2 letters long, classified as a noun. Corpus data places it at rank #613 in overall Portuguese word frequency, putting it firmly in the everyday core of the language. Wiktionary records 9 distinct senses for this headword, so context determines which meaning a reader should apply.

No generated misspelling entries exist for ar in our index, suggesting the orthography follows predictable Portuguese patterns. It also participates in 20 confusable-pair relationships, "As", "at", "av", and more, where similar look or sound leads writers to substitute one word for another in context.

This entry carries no recorded etymology, so its spelling is best read as a straightforward mapping from sound to letter. The correct Portuguese form is ar, spelled A-R.

Definition

  1. 1
    fluido gasoso que envolve todo o planeta Terra; atmosfera
  2. 2
    gás que constitui a atmosfera terrestre; formado por 21% de oxigênio, 78% de nitrogênio e 1% de outros gases, como o dióxido de carbono e gases nobres
  3. 3
    o espaço aéreo
  4. 4
    vento, brisa, aragem
  5. 5
    aparência, fisionomia, semblante
  6. 6
    indício:
  7. 7
    gás ou vapor
  8. 8
    ataque repentino de causa atribuída por golpe de ar, paralisia, estupor
  9. 9
    maneiras, modos; ares

This word in other languages

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 "ar"?
"ar" is spelled A-R.
What does "ar" mean?
As a noun, "ar" means: fluido gasoso que envolve todo o planeta Terra; atmosfera
What words are commonly confused with "ar"?
"ar" is commonly confused with "As", "at", "av". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "ar" come from?
"ar" 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 “ar”

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

  • The one correct Portuguese spelling is A-R - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “As” - see the side-by-side comparison. ar vs As
  • Browse more Portuguese words and confusable pairs in the same reference. Portuguese words
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