summavssumpWhich spelling fits?

Which to use

“summa” and “sump” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#36,357
“summa” frequency rank
#41,400
“sump” frequency rank
77757
confusion score

Side-by-Side Comparison

Feature summa sump
Definition A comprehensive summary of, or treatise on a subject, especially theology or philosophy. A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink.

Letter map: summa vs sump

Shared letters muted; letters that set summa and sump apart highlighted. Shared run: 3. summa runs 5 letters (CVCCV) against sump's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
summa
4 ch
sump

Spelling & dictionary notes on summa vs sump

summa and sump 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 1 letter(s) in length. Our composite confusion score for this pair is 77757, derived from the frequency rank of both members and their visual similarity.

summa is recorded at frequency rank #36,357, classified as anoun. sump is at rank #41,400, tagged as anoun, pronounced /sʌmp/.

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 77757, this pair ranks #26,354 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of summa vs sump

Shared letters: msu. Private to "summa": a. Private to "sump": p.

"summa" · 5 letters · shape CVCCV  ·  "sump" · 4 letters · shape CVCC

Known mistypes of this pair

  • summa ← smuma · ssumma · suma · sumam · usmma
  • sump ← smup · ssump · summp · sumpp · supm · usmp

Frequently Asked Questions

Do "summa" and "sump" mean the same thing in a sentence?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "summa" or "sump" show up more?
"summa" is the more common of the two: it sits at frequency rank #36,357 in our English list, against #41,400 for "sump". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "summa" vs "sump" is on the table, pick a follow-up below.

  • Full dictionary entry for "summa" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sump" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #26,354 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "summa" and "sump" also get mixed up with nearby pairs, the highest-scored neighbour is "sump 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 #26,354 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list