Which to use
“spur” and “su” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,976
- “spur” frequency rank
- #8,094
- “su” frequency rank
- 20070
- confusion score
Side-by-Side Comparison
| Feature | spur | su |
|---|---|---|
| Definition | A rigid implement, often roughly y-shaped, that is fixed to one's heel for the purpose of prodding a horse. Often worn by, and emblematic of, the cowboy or the knight. | Alternative form of xu (“former Vietnamese currency”). |
Letter map: spur vs su
Shared letters muted; letters that set spur and su apart highlighted. Shared run: 2.
Pair insight - spur / su
spur and su are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 20070, derived from the frequency rank of both members and their visual similarity.
spur is recorded at frequency rank #11,976, classified as anoun, pronounced /spɜː/. su is at rank #8,094, tagged as anoun.
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 20070, this pair ranks #433,693 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of spur vs su
Shared letters: su. Private to "spur": pr. Private to "su": -.
"spur" · 4 letters · shape CCVC · "su" · 2 letters · shape CV
Known mistypes of this pair
- spur ← psur · sppur · spru · spurr · sspur · supr
Frequently Asked Questions
Can "spur" and "su" be used interchangeably?
In ordinary English text, does "spur" or "su" show up more?
After this comparison
You've compared "spur" and "su". Here's where to go from here.
- Full dictionary entry for "spur" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "su" - compare definitions side by side with the headword page. Word entry
- This pair ranks #433,693 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "spur" and "su" also get mixed up with nearby pairs, the highest-scored neighbour is "spur vs sura". 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 #433,693 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.