Which to use
“src” is a noun and “sub” is a preposition - they look or sound alike but fill different roles in a sentence.
- #25,816
- “src” frequency rank
- #10,413
- “sub” frequency rank
- 36229
- confusion score
Side-by-Side Comparison
| Feature | src | sub |
|---|---|---|
| Definition | Source. | Préposition latine, qui s’emploie dans des locutions telles que : |
Where the eye mixes src and sub
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: src vs sub
These two trip readers on the page rather than in the ear: src is \sɔːs\ while sub is \syb\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 36229, derived from the frequency rank of both members and their visual similarity.
src is recorded at frequency rank #25,816, classified as anoun, pronounced \sɔːs\. sub is at rank #10,413, tagged as aprep, pronounced \syb\.
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 36229, this pair ranks #271,071 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of src vs sub
Shared letters: s. Private to "src": cr. Private to "sub": bu.
"src" · 3 letters · shape CCC · "sub" · 3 letters · shape CVC
Frequently Asked Questions
Can "src" and "sub" be used interchangeably?
Which is more common, "src" or "sub"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "src" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sub" - compare definitions side by side with the headword page. Word entry
- This pair ranks #271,071 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "src" and "sub" also get mixed up with nearby pairs, the highest-scored neighbour is "src vs suu". Nearby pair
Confusion rank #271,071 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.