Aar

/ɑɹ/

//ɑɹ// name

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

"aar" is a 3-letter English headword indexed on PlainSpell.

The verdict

“Aar” sits in 20 confusable pairs (corpus #45,768) as a proper noun. The look-alike neighbours are the real trap.

#45,768
frequency rank, English
3,931
“A” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A river in Switzerland, flowing 292 km from the glaciers of the Bernese Alps into the Rhine at Koblenz, on the Swiss–German border.

Corpus desk

Index EN-aar · Aar · English

Aar · rank #45,768 · 0 variants · 20 confusables

  • FREQ-MID #45,768
  • LEN-MID 3 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH acceptability

Nearest frequency peer: acceptability (+1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbours of confusable “Aar”

Peers at similar corpus weight, separate from look-alike pairs below

corpus weight

What this shows Bars place “Aar” against nearest ranked English headwords, not a reprint of the confusable-pair desk.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

Aar vs as
33% similar
Aar vs at
33% similar
Aar vs an
33% similar

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

Key facts for Aar
PropertyValue
HeadwordAar
LanguageEnglish
Part of speechProper noun
IPA/ɑɹ/
Letters3
Frequency rank#45,768
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “Aar”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).Aarlands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “acceptability” (#45,769), “Aceh” (#45,770), “alb” (#45,776). Among 3,931 “A” headwords, “Aar” is #45,768. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for Aar is neighbouring look-alikes ("as", "at", …), not just typos; it is aproper noun pronounced /ɑɹ/. Frequency #45,768 among 3,931 “A” headwords. 3 recorded senses keep meaning in play.

No generated misspelling entries exist for Aar in our index, a sign its spelling follows regular English conventions. It also participates in 20 confusable-pair relationships, "as", "at", "an", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From German Aare, probably from a Celtic language. The correct English form is Aar, spelled A-A-R.

Definition

  1. 1
    A river in Switzerland, flowing 292 km from the glaciers of the Bernese Alps into the Rhine at Koblenz, on the Swiss–German border.
  2. 2
    A river in Germany that flows 50 km from the Taunus in Hesse into the Lahn at Diez, Rhineland-Palatinate.
  3. 3
    A tributary in Hesse, Germany of the Dill river, itself a tributary of the Lahn.

Etymology

From German Aare, probably from a Celtic language.

This word in other languages

Aar(Français)Aare(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 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Aar"?
"Aar" is spelled A-A-R. The IPA pronunciation is /ɑɹ/.
What does "Aar" mean?
As a proper noun, "Aar" means: A river in Switzerland, flowing 292 km from the glaciers of the Bernese Alps into the Rhine at Koblenz, on the Swiss–German border.
What words are commonly confused with "Aar"?
"Aar" is commonly confused with "as", "at", "an". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "Aar"?
The IPA (International Phonetic Alphabet) transcription for "Aar" is /ɑɹ/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "Aar"?
From German Aare, probably from a Celtic language. See the full etymology section above for more details.
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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "Aar", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

alb#45,776BLE#45,811Tyr#45,720twp#45,718

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

Source: FrequencyWords open word-frequency list