SeifevsseinemWhich spelling fits?

Quick tell: Seife is a noun, seinem is an unknown, so they fill different roles in a sentence.

Which to use

“Seife” is a noun and “seinem” is an unknown - they look or sound alike but fill different roles in a sentence.

#13,017
“Seife” frequency rank
#217
“seinem” frequency rank
13234
confusion score

Side-by-Side Comparison

Feature Seife seinem
Definition ein wasserlösliches Reinigungsmittel für Körperhygiene Dativ Singular Maskulinum des Possessivpronomens sein

Where the eye mixes Seife and seinem

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Seife runs 5 letters (CVVCV) against seinem's 6 (CVVCVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
Seife
6 ch
seinem

Visual trap between Seife and seinem

These two trip readers on the page rather than in the ear: Seife is [ˈzaɪ̯fə] while seinem is [ˈzaɪ̯nəm]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs unknown), which is usually the fastest check. Our composite confusion score for this pair is 13234, derived from the frequency rank of both members and their visual similarity.

Seife is recorded at frequency rank #13,017, classified as anoun, pronounced [ˈzaɪ̯fə]. seinem is at rank #217, tagged as anunknown, pronounced [ˈzaɪ̯nəm].

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 13234, this pair ranks #1,959,242 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Seife vs seinem

Shared letters: eis. Private to "Seife": f. Private to "seinem": mn.

"Seife" · 5 letters · shape CVVCV  ·  "seinem" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • Seife ← esife · sefie · seief · seiffe · siefe · sseife
  • seinem ← esinem · seienm · seinemm · seinme · seinnem · seniem · sienem · sseinem

Frequently Asked Questions

Is swapping "Seife" for "seinem" ever safe?
No - they are not even the same part of speech. "Seife" is a noun and "seinem" an unknown, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "Seife" or "seinem" show up more?
"seinem" is the more common of the two: it sits at frequency rank #217 in our German list, against #13,017 for "Seife". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "Seife" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "seinem" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,959,242 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Seife" and "seinem" also get mixed up with nearby pairs, the highest-scored neighbour is "Seife vs Sire". 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 #1,959,242 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