Which to use
“sac” is a noun and “sei” is a verb - they look or sound alike but fill different roles in a sentence.
- #42,101
- “sac” frequency rank
- #185
- “sei” frequency rank
- 42286
- confusion score
Side-by-Side Comparison
| Feature | sac | sei |
|---|---|---|
| Definition | ein Transport- und Aufbewahrungsbehältnis aus grobem Stoff oder robustem Material | 2. Person Singular Präsens Imperativ Aktiv des Verbs sein |
Where the eye mixes sac and sei
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: sac vs sei
These two trip readers on the page rather than in the ear: sac is [sak] while sei is [zaɪ̯]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 42286, derived from the frequency rank of both members and their visual similarity.
sac is recorded at frequency rank #42,101, classified as anoun, pronounced [sak]. sei is at rank #185, tagged as averb, pronounced [zaɪ̯].
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 42286, this pair ranks #1,454,085 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sac vs sei
Shared letters: s. Private to "sac": ac. Private to "sei": ei.
"sac" · 3 letters · shape CVC · "sei" · 3 letters · shape CVV
Frequently Asked Questions
Can "sac" and "sei" be used interchangeably?
Frequency check: "sac" vs "sei" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "sac" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sei" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,454,085 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "sac" and "sei" also get mixed up with nearby pairs, the highest-scored neighbour is "sac vs seg". Nearby pair
Confusion rank #1,454,085 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.