Which to use
“SSI” is a noun and “sup” is a verb - they look or sound alike but fill different roles in a sentence.
- #30,241
- “SSI” frequency rank
- #13,818
- “sup” frequency rank
- 44059
- confusion score
Side-by-Side Comparison
| Feature | SSI | sup |
|---|---|---|
| Definition | Initialism of Server Side Include. | To sip; to take a small amount of food or drink into the mouth, especially with a spoon. |
Letter map: SSI vs sup
Shared letters muted; letters that set SSI and sup apart highlighted. Shared run: 1.
Role in the sentence - SSI and sup
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: SSI is anoun and supaverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 44059, derived from the frequency rank of both members and their visual similarity.
SSI is recorded at frequency rank #30,241, classified as anoun. sup is at rank #13,818, tagged as averb, pronounced /sʌp/.
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 44059, this pair ranks #234,072 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of SSI vs sup
Shared letters: s. Private to "SSI": i. Private to "sup": pu.
"SSI" · 3 letters · shape CCV · "sup" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "SSI" for "sup" ever safe?
Frequency check: "SSI" vs "sup" - which ranks higher?
Useful next steps
Done with this confusable. These links stay specific to "SSI" and "sup".
- Full dictionary entry for "SSI" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sup" - compare definitions side by side with the headword page. Word entry
- This pair ranks #234,072 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "SSI" and "sup" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs SSI". Nearby pair
Confusion rank #234,072 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.