Which to use
“fasting” is a verb and “flashing” is a noun - they look or sound alike but fill different roles in a sentence.
- #13,514
- “fasting” frequency rank
- #11,547
- “flashing” frequency rank
- 25061
- confusion score
Side-by-Side Comparison
| Feature | fasting | flashing |
|---|---|---|
| Definition | present participle and gerund of fast | A sudden blazing or bursting, as of fire or water. |
Where the eye mixes fasting and flashing
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Why the eye confuses fasting with flashing
These two trip readers on the page rather than in the ear: fasting is /ˈfæstɪŋ/ while flashing is /ˈflæʃɪŋ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 25061, derived from the frequency rank of both members and their visual similarity.
fasting is recorded at frequency rank #13,514, classified as averb, pronounced /ˈfæstɪŋ/. flashing is at rank #11,547, tagged as anoun, pronounced /ˈflæʃɪŋ/.
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 25061, this pair ranks #397,239 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fasting vs flashing
Shared letters: afgins. Private to "fasting": t. Private to "flashing": hl.
"fasting" · 7 letters · shape CVCCVCC · "flashing" · 8 letters · shape CCVCCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "fasting" for "flashing" ever safe?
Frequency check: "fasting" vs "flashing" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "fasting" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "flashing" - compare definitions side by side with the headword page. Word entry
- This pair ranks #397,239 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "fasting" and "flashing" also get mixed up with nearby pairs, the highest-scored neighbour is "farthing vs fasting". 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 #397,239 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.