scivsseiWhat's the difference?

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

Which to use

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

#21,418
“sci” frequency rank
#185
“sei” frequency rank
21603
confusion score

Side-by-Side Comparison

Feature sci sei
Definition der Ski 2. Person Singular Präsens Imperativ Aktiv des Verbs sein

Where the spellings diverge

Shared letters are muted; the letters that actually set sci and sei apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

3 ch
sci
3 ch
sei

Spelling & Dictionary Insight

sci and sei form a confusable pair in the German index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - c in “sci” becomes e in “sei” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 21603, derived from the frequency rank of both members and their visual similarity.

sci is recorded at frequency rank #21,418, classified as anoun, pronounced […]. 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 21603, this pair ranks #1,884,306 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

sci#21,418
sei#185

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "sci" and "sei" be used interchangeably?
No, "sci" and "sei" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering sci vs sei

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “sci”; for a verb, it's “sei”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “sci” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list