sumvsSumpfConfusable pair

Quick tell: sum is a verb, Sumpf is a noun, so they fill different roles in a sentence.

Which to use

“sum” is a verb and “Sumpf” is a noun - they look or sound alike but fill different roles in a sentence.

#31,289
“sum” frequency rank
#12,800
“Sumpf” frequency rank
44089
confusion score

Side-by-Side Comparison

Feature sum Sumpf
Definition 1. Person Singular Indikativ Präsens Aktiv des Verbs esse flache, stehende Wasserfläche mit Vegetation

Letter map: sum vs Sumpf

Shared letters muted; letters that set sum and Sumpf apart highlighted. Shared run: 3.

3 ch
sum
5 ch
Sumpf

Part-of-speech tell for sum / Sumpf

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sum is averb and Sumpfanoun. On the page they differ by 2 extra letter(s) - “sum” sits inside “Sumpf”. Our composite confusion score for this pair is 44089, derived from the frequency rank of both members and their visual similarity.

sum is recorded at frequency rank #31,289, classified as averb, pronounced […]. Sumpf is at rank #12,800, tagged as anoun, pronounced [zʊmp͡f].

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 44089, this pair ranks #1,397,392 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sum vs Sumpf

Shared letters: msu. Private to "sum": -. Private to "Sumpf": fp.

"sum" · 3 letters · shape CVC  ·  "Sumpf" · 5 letters · shape CVCCC

Known mistypes of this pair

  • Sumpfsmupf · ssumpf · sumfp · summpf · sumpff · sumppf · supmf · usmpf

Frequently Asked Questions

Is swapping "sum" for "Sumpf" ever safe?
No - they are not even the same part of speech. "sum" is a verb and "Sumpf" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "sum" or "Sumpf" show up more?
"Sumpf" is the more common of the two: it sits at frequency rank #12,800 in our German list, against #31,289 for "sum". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "sum" and "Sumpf". Here's where to go from here.

  • Full dictionary entry for "sum" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Sumpf" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,397,392 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "sum" and "Sumpf" also get mixed up with nearby pairs, the highest-scored neighbour is "puzzles vs sum". 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 #1,397,392 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list