Which to use
“failed” and “fueled” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,596
- “failed” frequency rank
- #13,519
- “fueled” frequency rank
- 15115
- confusion score
Side-by-Side Comparison
| Feature | failed | fueled |
|---|---|---|
| Definition | simple past and past participle of fail | simple past and past participle of fuel |
Where the eye mixes failed and fueled
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Why the eye confuses failed with fueled
A purely visual mix-up. failed (/feɪld/) and fueled (/ˈfjuː.əld/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 15115, derived from the frequency rank of both members and their visual similarity.
failed is recorded at frequency rank #1,596, classified as averb, pronounced /feɪld/. fueled is at rank #13,519, tagged as averb, pronounced /ˈfjuː.əld/.
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 15115, this pair ranks #465,960 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of failed vs fueled
Shared letters: defl. Private to "failed": ai. Private to "fueled": u.
"failed" · 6 letters · shape CVVCVC · "fueled" · 6 letters · shape CVVCVC
Known mistypes of this pair
Frequently Asked Questions
Do "failed" and "fueled" mean the same thing in a sentence?
Which is more common, "failed" or "fueled"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "failed" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fueled" - compare definitions side by side with the headword page. Word entry
- This pair ranks #465,960 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "failed" and "fueled" also get mixed up with nearby pairs, the highest-scored neighbour is "flexed vs fueled". 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 #465,960 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.