Which to use
“ageing” is an adjective and “ailing” is a noun - they look or sound alike but fill different roles in a sentence.
- #16,172
- “ageing” frequency rank
- #25,993
- “ailing” frequency rank
- 42165
- confusion score
Side-by-Side Comparison
| Feature | ageing | ailing |
|---|---|---|
| Definition | UK, Australia, New Zealand, and South Africa standard spelling of aging. | An ailment. |
Letter map: ageing vs ailing
Shared letters muted; letters that set ageing and ailing apart highlighted. Shared run: 4.
Role in the sentence - ageing and ailing
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ageing is anadjective and ailinganoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 42165, derived from the frequency rank of both members and their visual similarity.
ageing is recorded at frequency rank #16,172, classified as anadj. ailing is at rank #25,993, tagged as anoun, pronounced /ˈeɪ.lɪŋ/.
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 42165, this pair ranks #251,726 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ageing vs ailing
Shared letters: agin. Private to "ageing": e. Private to "ailing": l.
"ageing" · 6 letters · shape VCVVCC · "ailing" · 6 letters · shape VVCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "ageing" for "ailing" ever safe?
Which is more common, "ageing" or "ailing"?
After this comparison
You've compared "ageing" and "ailing". Here's where to go from here.
- Full dictionary entry for "ageing" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ailing" - compare definitions side by side with the headword page. Word entry
- This pair ranks #251,726 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ageing" and "ailing" also get mixed up with nearby pairs, the highest-scored neighbour is "ailing vs aline". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #251,726 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.