Which to use
“IAS” is a noun and “inc” is a verb - they look or sound alike but fill different roles in a sentence.
- #31,214
- “IAS” frequency rank
- #1,760
- “inc” frequency rank
- 32974
- confusion score
Side-by-Side Comparison
| Feature | IAS | inc |
|---|---|---|
| Definition | Initialism of indicated airspeed. | Abbreviation of increase. |
Letter map: IAS vs inc
Shared letters muted; letters that set IAS and inc apart highlighted. Shared run: 1. IAS (VVC) and inc (VCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Grammar separator: IAS vs inc
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: IAS is anoun and incaverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 32974, derived from the frequency rank of both members and their visual similarity.
IAS is recorded at frequency rank #31,214, classified as anoun. inc is at rank #1,760, tagged as averb.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 32974, this pair ranks #333,329 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of IAS vs inc
Shared letters: i. Private to "IAS": as. Private to "inc": cn.
"IAS" · 3 letters · shape VVC · "inc" · 3 letters · shape VCC
Frequently Asked Questions
Is swapping "IAS" for "inc" ever safe?
Frequency check: "IAS" vs "inc" - which ranks higher?
What to do next
You've compared "IAS" and "inc". Here's where to go from here.
- Full dictionary entry for "IAS" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "inc" - compare definitions side by side with the headword page. Word entry
- This pair ranks #333,329 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "IAS" and "inc" also get mixed up with nearby pairs, the highest-scored neighbour is "IAS vs Ilan". Nearby pair
Confusion rank #333,329 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.