Which to use
“source” and “surge” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #743
- “source” frequency rank
- #9,403
- “surge” frequency rank
- 10146
- confusion score
Side-by-Side Comparison
| Feature | source | surge |
|---|---|---|
| Definition | The person, place, or thing from which something (information, goods, etc.) comes or is acquired. | A sudden transient rush, flood or increase. |
Where the eye mixes source and surge
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: source vs surge
A purely visual mix-up. source (/sɔːs/) and surge (/sɝd͡ʒ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 10146, derived from the frequency rank of both members and their visual similarity.
source is recorded at frequency rank #743, classified as anoun, pronounced /sɔːs/. surge is at rank #9,403, tagged as anoun, pronounced /sɝd͡ʒ/.
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 10146, this pair ranks #493,757 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of source vs surge
Shared letters: ersu. Private to "source": co. Private to "surge": g.
"source" · 6 letters · shape CVVCCV · "surge" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "source" for "surge" ever safe?
Frequency check: "source" vs "surge" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "source" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "surge" - compare definitions side by side with the headword page. Word entry
- This pair ranks #493,757 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "source" and "surge" also get mixed up with nearby pairs, the highest-scored neighbour is "sura vs surge". 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 #493,757 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.