Which to use
“declining” is a verb and “defining” is an adjective - they look or sound alike but fill different roles in a sentence.
- #9,161
- “declining” frequency rank
- #7,554
- “defining” frequency rank
- 16715
- confusion score
Side-by-Side Comparison
| Feature | declining | defining |
|---|---|---|
| Definition | present participle and gerund of decline | Serving to define or distinguish. |
Letter map: declining vs defining
Shared letters muted; letters that set declining and defining apart highlighted. Shared run: 7.
Role in the sentence - declining and defining
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: declining is averb and defininganadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 16715, derived from the frequency rank of both members and their visual similarity.
declining is recorded at frequency rank #9,161, classified as averb, pronounced /dɪˈklaɪnɪŋ/. defining is at rank #7,554, tagged as anadj.
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 16715, this pair ranks #456,011 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of declining vs defining
Shared letters: degin. Private to "declining": cl. Private to "defining": f.
"declining" · 9 letters · shape CVCCVCVCC · "defining" · 8 letters · shape CVCVCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "declining" for "defining" ever safe?
In ordinary English text, does "declining" or "defining" show up more?
Useful next steps
You've compared "declining" and "defining". Here's where to go from here.
- Full dictionary entry for "declining" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "defining" - compare definitions side by side with the headword page. Word entry
- This pair ranks #456,011 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "declining" and "defining" also get mixed up with nearby pairs, the highest-scored neighbour is "defining vs Denning". 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 #456,011 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.