Which to use
“s” is a character and “sf” is a noun - they look or sound alike but fill different roles in a sentence.
- #142
- “s” frequency rank
- #8,606
- “sf” frequency rank
- 8748
- confusion score
Side-by-Side Comparison
| Feature | s | sf |
|---|---|---|
| Definition | The nineteenth letter of the English alphabet, called ess and written in the Latin script. | Alternative form of SF (science fiction) |
Letter map: s vs sf
Shared letters muted; letters that set s and sf apart highlighted. Shared run: 1.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: s is acharacter and sfanoun. On the page they differ by 1 extra letter(s) - “s” sits inside “sf”. Our composite confusion score for this pair is 8748, derived from the frequency rank of both members and their visual similarity.
s is recorded at frequency rank #142, classified as acharacter, pronounced /ɛs/. sf is at rank #8,606, 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 8748, this pair ranks #500,922 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of s vs sf
Shared letters: s. Private to "s": -. Private to "sf": f.
"s" · 1 letters · shape C · "sf" · 2 letters · shape CC