IAS
"ias" is a 3-letter English headword indexed on PlainSpell.
The verdict
“IAS” sits in 20 confusable pairs (corpus #31,214) as a noun. The look-alike neighbours are the real trap.
- #31,214
- frequency rank, English
- 2,140
- “I” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of indicated airspeed.
Corpus desk
Index EN-ias · IAS · English
IAS · rank #31,214 · 0 variants · 20 confusables
- FREQ-MID #31,214
- LEN-MID 3 letters
- VOW-2 2 vowels
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 2,140
- PHOTO-FINISH hysterically
Nearest frequency peer: hysterically (-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 “IAS”
Peers at similar corpus weight, separate from look-alike pairs below
- hurrah
hurrah
68,790 corpus weight
- Hutchison
Hutchison
68,789 corpus weight
- hysterically
hysterically
68,788 corpus weight
- IAS
IAS
68,787 corpus weight
- idiosyncrat…
idiosyncratic
68,785 corpus weight
- Ignatius
Ignatius
68,784 corpus weight
What this shows Bars place “IAS” against nearest ranked English headwords, not a reprint of the confusable-pair desk.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | IAS |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #31,214 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “IAS”
Easy to mix with look-alikes
The spelling risk for IAS is neighbouring look-alikes ("in", "is", …), not just typos; it is anoun. Frequency #31,214 among 2,140 “I” headwords. 3 recorded senses keep meaning in play.
IAS has no tracked misspelling variants, since its letter pattern doesn't lend itself to common typo substitutions. It also participates in 20 confusable-pair relationships, "in", "is", "it", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Wiktionary doesn't record an etymology for this headword, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is IAS, spelled I-A-S.
Definition
- 1Initialism of indicated airspeed.
- 2Initialism of Institute for Advanced Study or Institute of Advanced StudiesStudies.
- 3Initialism of international accounting standard.
Recorded use
Wiktionary examplesThese source excerpts show how IAS appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Instead, its members agree to use their best endeavors: 1. To ensure that published financial statements comply with IASs in all material respects...;
This section looks at past surveys of compliance with international accounting standards. It is important here to distinguish between de jure conformity (of the rules of the country with IASs) and de facto compliance (of the financial reporting of a particular company with IASs).
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "IAS", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).